/* $OpenBSD: mouse_protocols.c,v 1.17 2019/06/28 13:32:51 deraadt Exp $ */ /* * Copyright (c) 2001 Jean-Baptiste Marchand, Julien Montagne and Jerome Verdon * * Copyright (c) 1998 by Kazutaka Yokota * * Copyright (c) 1995 Michael Smith * * Copyright (c) 1993 by David Dawes * * Copyright (c) 1990,91 by Thomas Roell, Dinkelscherben, Germany. * * All rights reserved. * * Most of this code was taken from the FreeBSD moused daemon, written by * Michael Smith. The FreeBSD moused daemon already contained code from the * Xfree Project, written by David Dawes and Thomas Roell and Kazutaka Yokota. * * Adaptation to OpenBSD was done by Jean-Baptiste Marchand, Julien Montagne * and Jerome Verdon. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by * David Dawes, Jean-Baptiste Marchand, Julien Montagne, Thomas Roell, * Michael Smith, Jerome Verdon and Kazutaka Yokota. * 4. The name authors may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * */ /* Support for non-wsmouse (i.e. serial mice) mice */ /* * Most of this code comes from the Xfree Project and are derived from two files * of Xfree86 3.3.6 with the following CVS tags : $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_Mouse.c,v 3.21.2.24 1999/12/11 19:00:42 hohndel Exp $ and $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86_PnPMouse.c,v 1.1.2.6 1999/07/29 09:22:51 hohndel Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "wsmoused.h" #include "mouse_protocols.h" extern int debug; extern int nodaemon; extern int background; extern mouse_t mouse; /* Cflags of each mouse protocol, ordered by P_XXX */ static const unsigned short mousecflags[] = { (CS7 | CREAD | CLOCAL | HUPCL), /* Microsoft */ (CS8 | CSTOPB | CREAD | CLOCAL | HUPCL), /* MouseSystems */ (CS8 | CSTOPB | CREAD | CLOCAL | HUPCL), /* Logitech */ (CS8 | PARENB | PARODD | CREAD | CLOCAL | HUPCL), /* MMSeries */ (CS7 | CREAD | CLOCAL | HUPCL), /* MouseMan */ (CS8 | CREAD | CLOCAL | HUPCL), /* MM HitTablet */ (CS7 | CREAD | CLOCAL | HUPCL), /* GlidePoint */ (CS7 | CREAD | CLOCAL | HUPCL), /* IntelliMouse */ (CS7 | CREAD | CLOCAL | HUPCL), /* Thinking Mouse */ }; /* array ordered by P_XXX giving protocol properties */ static const unsigned char proto[][7] = { /* mask hd_id dp_mask dp_id bytes b4_mask b4_id */ {0x40, 0x40, 0x40, 0x00, 3, ~0x23, 0x00}, /* Microsoft */ {0xf8, 0x80, 0x00, 0x00, 5, 0x00, 0xff}, /* MouseSystems */ {0xe0, 0x80, 0x80, 0x00, 3, 0x00, 0xff}, /* Logitech */ {0xe0, 0x80, 0x80, 0x00, 3, 0x00, 0xff}, /* MMSeries */ {0x40, 0x40, 0x40, 0x00, 3, ~0x33, 0x00}, /* MouseMan */ {0xe0, 0x80, 0x80, 0x00, 3, 0x00, 0xff}, /* MM HitTablet */ {0x40, 0x40, 0x40, 0x00, 3, ~0x33, 0x00}, /* GlidePoint */ {0x40, 0x40, 0x40, 0x00, 3, ~0x3f, 0x00}, /* IntelliMouse */ {0x40, 0x40, 0x40, 0x00, 3, ~0x33, 0x00}, /* ThinkingMouse */ }; /* * array ordered by P_XXX (mouse protocols) giving the protocol * corresponding to the name of a mouse */ const char *mouse_names[] = { "microsoft", "mousesystems", "logitech", "mmseries", "mouseman", "mmhitab", "glidepoint", "intellimouse", "thinkingmouse", NULL }; /* protocol currently used */ static unsigned char cur_proto[7]; /* PnP EISA/product IDs */ static const symtab_t pnpprod[] = { {"KML0001", P_THINKING},/* Kensignton ThinkingMouse */ {"MSH0001", P_IMSERIAL},/* MS IntelliMouse */ {"MSH0004", P_IMSERIAL},/* MS IntelliMouse TrackBall */ {"KYEEZ00", P_MS}, /* Genius EZScroll */ {"KYE0001", P_MS}, /* Genius PnP Mouse */ {"KYE0003", P_IMSERIAL},/* Genius NetMouse */ {"LGI800C", P_IMSERIAL},/* Logitech MouseMan (4 button model) */ {"LGI8050", P_IMSERIAL},/* Logitech MouseMan+ */ {"LGI8051", P_IMSERIAL},/* Logitech FirstMouse+ */ {"LGI8001", P_LOGIMAN}, /* Logitech serial */ {"PNP0F01", P_MS}, /* MS serial */ /* * XXX EzScroll returns PNP0F04 in the compatible device field; but it * doesn't look compatible... */ {"PNP0F04", P_MSC}, /* MouseSystems */ {"PNP0F05", P_MSC}, /* MouseSystems */ {"PNP0F08", P_LOGIMAN}, /* Logitech serial */ {"PNP0F09", P_MS}, /* MS BallPoint serial */ {"PNP0F0A", P_MS}, /* MS PnP serial */ {"PNP0F0B", P_MS}, /* MS PnP BallPoint serial */ {"PNP0F0C", P_MS}, /* MS serial comatible */ {"PNP0F0F", P_MS}, /* MS BallPoint comatible */ {"PNP0F17", P_LOGIMAN}, /* Logitech serial compat */ {NULL, -1}, }; static const symtab_t * gettoken(const symtab_t * tab, char *s, int len) { int i; for (i = 0; tab[i].name != NULL; ++i) { if (strncmp(tab[i].name, s, len) == 0) break; } return &tab[i]; } const char * mouse_name(int type) { return (type < 0 || (uint)type >= sizeof(mouse_names) / sizeof(mouse_names[0])) ? "unknown" : mouse_names[type]; } void SetMouseSpeed(int old, unsigned int cflag) { struct termios tty; char *c; if (tcgetattr(mouse.mfd, &tty) == -1) { debug("Warning: %s unable to get status of mouse fd (%s)\n", mouse.portname, strerror(errno)); return; } tty.c_iflag = IGNBRK | IGNPAR; tty.c_oflag = 0; tty.c_lflag = 0; tty.c_cflag = (tcflag_t) cflag; tty.c_cc[VTIME] = 0; tty.c_cc[VMIN] = 1; switch (old) { case 9600: cfsetispeed(&tty, B9600); cfsetospeed(&tty, B9600); break; case 4800: cfsetispeed(&tty, B4800); cfsetospeed(&tty, B4800); break; case 2400: cfsetispeed(&tty, B2400); cfsetospeed(&tty, B2400); break; case 1200: default: cfsetispeed(&tty, B1200); cfsetospeed(&tty, B1200); } if (tcsetattr(mouse.mfd, TCSADRAIN, &tty) == -1) logerr(1, "unable to get mouse status. Exiting...\n"); c = "*n"; cfsetispeed(&tty, B1200); cfsetospeed(&tty, B1200); if (mouse.proto == P_LOGIMAN || mouse.proto == P_LOGI) { if (write(mouse.mfd, c, 2) != 2) logerr(1, "unable to write to mouse. Exiting...\n"); } usleep(100000); if (tcsetattr(mouse.mfd, TCSADRAIN, &tty) == -1) logerr(1, "unable to get mouse status. Exiting...\n"); } int FlushInput(int fd) { struct pollfd pfd[1]; char c[4]; if (tcflush(fd, TCIFLUSH) == 0) return 0; pfd[0].fd = fd; pfd[0].events = POLLIN; while (poll(pfd, 1, 0) > 0) read(fd, &c, sizeof(c)); return 0; } /* * Try to elicit a PnP ID as described in * Microsoft, Hayes: "Plug and Play External COM Device Specification, * rev 1.00", 1995. * * The routine does not fully implement the COM Enumerator as par Section * 2.1 of the document. In particular, we don't have idle state in which * the driver software monitors the com port for dynamic connection or * removal of a device at the port, because `moused' simply quits if no * device is found. * * In addition, as PnP COM device enumeration procedure slightly has * changed since its first publication, devices which follow earlier * revisions of the above spec. may fail to respond if the rev 1.0 * procedure is used. XXX */ static int pnpgets(int mouse_fd, char *buf) { struct pollfd pfd[1]; int i; char c; pfd[0].fd = mouse_fd; pfd[0].events = POLLIN; #if 0 /* * This is the procedure described in rev 1.0 of PnP COM device spec. * Unfortunately, some devices which comform to earlier revisions of * the spec gets confused and do not return the ID string... */ /* port initialization (2.1.2) */ ioctl(mouse_fd, TIOCMGET, &i); i |= TIOCM_DTR; /* DTR = 1 */ i &= ~TIOCM_RTS; /* RTS = 0 */ ioctl(mouse_fd, TIOCMSET, &i); usleep(200000); if ((ioctl(mouse_fd, TIOCMGET, &i) == -1) || ((i & TIOCM_DSR) == 0)) goto disconnect_idle; /* port setup, 1st phase (2.1.3) */ SetMouseSpeed(1200, (CS7 | CREAD | CLOCAL | HUPCL)); i = TIOCM_DTR | TIOCM_RTS; /* DTR = 0, RTS = 0 */ ioctl(mouse_fd, TIOCMBIC, &i); usleep(200000); i = TIOCM_DTR; /* DTR = 1, RTS = 0 */ ioctl(mouse_fd, TIOCMBIS, &i); usleep(200000); /* wait for response, 1st phase (2.1.4) */ FlushInput(mouse_fd); i = TIOCM_RTS; /* DTR = 1, RTS = 1 */ ioctl(mouse_fd, TIOCMBIS, &i); /* try to read something */ if (poll(pfd, 1, 200000 / 1000) <= 0) { /* port setup, 2nd phase (2.1.5) */ i = TIOCM_DTR | TIOCM_RTS; /* DTR = 0, RTS = 0 */ ioctl(mouse_fd, TIOCMBIC, &i); usleep(200000); /* wait for respose, 2nd phase (2.1.6) */ FlushInput(mouse_fd); i = TIOCM_DTR | TIOCM_RTS; /* DTR = 1, RTS = 1 */ ioctl(mouse_fd, TIOCMBIS, &i); /* try to read something */ if (poll(pfd, 1, 200000 / 1000) <= 0) goto connect_idle; } #else /* * This is a simplified procedure; it simply toggles RTS. */ SetMouseSpeed(1200, (CS7 | CREAD | CLOCAL | HUPCL)); ioctl(mouse_fd, TIOCMGET, &i); i |= TIOCM_DTR; /* DTR = 1 */ i &= ~TIOCM_RTS; /* RTS = 0 */ ioctl(mouse_fd, TIOCMSET, &i); usleep(200000); /* wait for response */ FlushInput(mouse_fd); i = TIOCM_DTR | TIOCM_RTS; /* DTR = 1, RTS = 1 */ ioctl(mouse_fd, TIOCMBIS, &i); /* try to read something */ if (poll(pfd, 1, 200000 / 1000) <= 0) goto connect_idle; #endif /* collect PnP COM device ID (2.1.7) */ i = 0; usleep(200000); /* the mouse must send `Begin ID' within * 200msec */ while (read(mouse_fd, &c, 1) == 1) { /* we may see "M", or "M3..." before `Begin ID' */ if ((c == 0x08) || (c == 0x28)) { /* Begin ID */ buf[i++] = c; break; } } if (i <= 0) { /* we haven't seen `Begin ID' in time... */ goto connect_idle; } ++c; /* make it `End ID' */ for (;;) { if (poll(pfd, 1, 200000 / 1000) <= 0) break; read(mouse_fd, &buf[i], 1); if (buf[i++] == c) /* End ID */ break; if (i >= 256) break; } if (buf[i - 1] != c) goto connect_idle; return i; #if 0 /* * According to PnP spec, we should set DTR = 1 and RTS = 0 while * in idle state. But, `moused' shall set DTR = RTS = 1 and proceed, * assuming there is something at the port even if it didn't * respond to the PnP enumeration procedure. */ disconnect_idle: i = TIOCM_DTR | TIOCM_RTS; /* DTR = 1, RTS = 1 */ ioctl(mouse_fd, TIOCMBIS, &i); #endif connect_idle: return 0; } /* pnpparse : parse a PnP string ID */ static int pnpparse(pnpid_t * id, char *buf, int len) { char s[3]; int offset, sum = 0, i, j; id->revision = 0; id->eisaid = NULL; id->serial = NULL; id->class = NULL; id->compat = NULL; id->description = NULL; id->neisaid = 0; id->nserial = 0; id->nclass = 0; id->ncompat = 0; id->ndescription = 0; offset = 0x28 - buf[0]; /* calculate checksum */ for (i = 0; i < len - 3; ++i) { sum += buf[i]; buf[i] += offset; } sum += buf[len - 1]; for (; i < len; ++i) buf[i] += offset; debug("Mouse: PnP ID string: '%*.*s'\n", len, len, buf); /* revision */ buf[1] -= offset; buf[2] -= offset; id->revision = ((buf[1] & 0x3f) << 6) | (buf[2] & 0x3f); debug("Mouse: PnP rev %d.%02d\n", id->revision / 100, id->revision % 100); /* EISA vendor and product ID */ id->eisaid = &buf[3]; id->neisaid = 7; /* option strings */ i = 10; if (buf[i] == '\\') { /* device serial # */ for (j = ++i; i < len; ++i) { if (buf[i] == '\\') break; } if (i >= len) i -= 3; if (i - j == 8) { id->serial = &buf[j]; id->nserial = 8; } } if (buf[i] == '\\') { /* PnP class */ for (j = ++i; i < len; ++i) { if (buf[i] == '\\') break; } if (i >= len) i -= 3; if (i > j + 1) { id->class = &buf[j]; id->nclass = i - j; } } if (buf[i] == '\\') { /* compatible driver */ for (j = ++i; i < len; ++i) { if (buf[i] == '\\') break; } /* * PnP COM spec prior to v0.96 allowed '*' in this field, * it's not allowed now; just ignore it. */ if (buf[j] == '*') ++j; if (i >= len) i -= 3; if (i > j + 1) { id->compat = &buf[j]; id->ncompat = i - j; } } if (buf[i] == '\\') { /* product description */ for (j = ++i; i < len; ++i) { if (buf[i] == ';') break; } if (i >= len) i -= 3; if (i > j + 1) { id->description = &buf[j]; id->ndescription = i - j; } } /* checksum exists if there are any optional fields */ if ((id->nserial > 0) || (id->nclass > 0) || (id->ncompat > 0) || (id->ndescription > 0)) { #if 0 debug("Mouse: PnP checksum: 0x%02X\n", sum); #endif snprintf(s, sizeof s, "%02X", sum & 0x0ff); if (strncmp(s, &buf[len - 3], 2) != 0) { #if 0 /* * Checksum error!! * I found some mice do not comply with the PnP COM device * spec regarding checksum... XXX */ return FALSE; #endif } } return 1; } /* pnpproto : return the prototype used, based on the PnP ID string */ static const symtab_t * pnpproto(pnpid_t * id) { const symtab_t *t; int i, j; if (id->nclass > 0) if (strncmp(id->class, "MOUSE", id->nclass) != 0) /* this is not a mouse! */ return NULL; if (id->neisaid > 0) { t = gettoken(pnpprod, id->eisaid, id->neisaid); if (t->val != -1) return t; } /* * The 'Compatible drivers' field may contain more than one * ID separated by ','. */ if (id->ncompat <= 0) return NULL; for (i = 0; i < id->ncompat; ++i) { for (j = i; id->compat[i] != ','; ++i) if (i >= id->ncompat) break; if (i > j) { t = gettoken(pnpprod, id->compat + j, i - j); if (t->val != -1) return t; } } return NULL; } /* mouse_init : init the mouse by writing appropriate sequences */ void mouse_init(void) { struct pollfd pfd[1]; char *s; char c; int i; pfd[0].fd = mouse.mfd; pfd[0].events = POLLIN; /** ** This comment is a little out of context here, but it contains ** some useful information... ******************************************************************** ** ** The following lines take care of the Logitech MouseMan protocols. ** ** NOTE: There are diffrent versions of both MouseMan and TrackMan! ** Hence I add another protocol P_LOGIMAN, which the user can ** specify as MouseMan in his XF86Config file. This entry was ** formerly handled as a special case of P_MS. However, people ** who don't have the middle button problem, can still specify ** Microsoft and use P_MS. ** ** By default, these mice should use a 3 byte Microsoft protocol ** plus a 4th byte for the middle button. However, the mouse might ** have switched to a different protocol before we use it, so I send ** the proper sequence just in case. ** ** NOTE: - all commands to (at least the European) MouseMan have to ** be sent at 1200 Baud. ** - each command starts with a '*'. ** - whenever the MouseMan receives a '*', it will switch back ** to 1200 Baud. Hence I have to select the desired protocol ** first, then select the baud rate. ** ** The protocols supported by the (European) MouseMan are: ** - 5 byte packed binary protocol, as with the Mouse Systems ** mouse. Selected by sequence "*U". ** - 2 button 3 byte Microsoft compatible protocol. Selected ** by sequence "*V". ** - 3 button 3+1 byte Microsoft compatible protocol (default). ** Selected by sequence "*X". ** ** The following baud rates are supported: ** - 1200 Baud (default). Selected by sequence "*n". ** - 9600 Baud. Selected by sequence "*q". ** ** Selecting a sample rate is no longer supported with the MouseMan! ** Some additional lines in xf86Config.c take care of ill configured ** baud rates and sample rates. (The user will get an error.) */ switch (mouse.proto) { case P_LOGI: /* * The baud rate selection command must be sent at the current * baud rate; try all likely settings */ SetMouseSpeed(9600, mousecflags[mouse.proto]); SetMouseSpeed(4800, mousecflags[mouse.proto]); SetMouseSpeed(2400, mousecflags[mouse.proto]); #if 0 SetMouseSpeed(1200, mousecflags[mouse.proto]); #endif /* select MM series data format */ write(mouse.mfd, "S", 1); SetMouseSpeed(1200, mousecflags[P_MM]); /* select report rate/frequency */ if (mouse.rate <= 0) write(mouse.mfd, "O", 1); else if (mouse.rate <= 15) write(mouse.mfd, "J", 1); else if (mouse.rate <= 27) write(mouse.mfd, "K", 1); else if (mouse.rate <= 42) write(mouse.mfd, "L", 1); else if (mouse.rate <= 60) write(mouse.mfd, "R", 1); else if (mouse.rate <= 85) write(mouse.mfd, "M", 1); else if (mouse.rate <= 125) write(mouse.mfd, "Q", 1); else write(mouse.mfd, "N", 1); break; case P_LOGIMAN: /* The command must always be sent at 1200 baud */ SetMouseSpeed(1200, mousecflags[mouse.proto]); write(mouse.mfd, "*X", 2); SetMouseSpeed(1200, mousecflags[mouse.proto]); break; case P_MMHIT: SetMouseSpeed(1200, mousecflags[mouse.proto]); /* * Initialize Hitachi PUMA Plus - Model 1212E to desired settings. * The tablet must be configured to be in MM mode, NO parity, * Binary Format. xf86Info.sampleRate controls the sensativity * of the tablet. We only use this tablet for it's 4-button puck * so we don't run in "Absolute Mode" */ write(mouse.mfd, "z8", 2); /* Set Parity = "NONE" */ usleep(50000); write(mouse.mfd, "zb", 2); /* Set Format = "Binary" */ usleep(50000); write(mouse.mfd, "@", 1); /* Set Report Mode = "Stream" */ usleep(50000); write(mouse.mfd, "R", 1); /* Set Output Rate = "45 rps" */ usleep(50000); write(mouse.mfd, "I\x20", 2); /* Set Incrememtal Mode "20" */ usleep(50000); write(mouse.mfd, "E", 1); /* Set Data Type = "Relative */ usleep(50000); /* Resolution is in 'lines per inch' on the Hitachi tablet */ if (mouse.resolution == MOUSE_RES_LOW) c = 'g'; else if (mouse.resolution == MOUSE_RES_MEDIUMLOW) c = 'e'; else if (mouse.resolution == MOUSE_RES_MEDIUMHIGH) c = 'h'; else if (mouse.resolution == MOUSE_RES_HIGH) c = 'd'; else if (mouse.resolution <= 40) c = 'g'; else if (mouse.resolution <= 100) c = 'd'; else if (mouse.resolution <= 200) c = 'e'; else if (mouse.resolution <= 500) c = 'h'; else if (mouse.resolution <= 1000) c = 'j'; else c = 'd'; write(mouse.mfd, &c, 1); usleep(50000); write(mouse.mfd, "\021", 1); /* Resume DATA output */ break; case P_THINKING: SetMouseSpeed(1200, mousecflags[mouse.proto]); /* the PnP ID string may be sent again, discard it */ usleep(200000); i = FREAD; ioctl(mouse.mfd, TIOCFLUSH, &i); /* send the command to initialize the beast */ for (s = "E5E5"; *s; ++s) { write(mouse.mfd, s, 1); if (poll(pfd, 1, INFTIM) <= 0) break; read(mouse.mfd, &c, 1); debug("%c", c); if (c != *s) break; } break; case P_MSC: SetMouseSpeed(1200, mousecflags[mouse.proto]); #if 0 if (mouse.flags & ClearDTR) { i = TIOCM_DTR; ioctl(mouse.mfd, TIOCMBIC, &i); } if (mouse.flags & ClearRTS) { i = TIOCM_RTS; ioctl(mouse.mfd, TIOCMBIC, &i); } #endif break; default: SetMouseSpeed(1200, mousecflags[mouse.proto]); break; } } /* mouse_identify : identify the protocol used by the mouse */ int mouse_identify(void) { char pnpbuf[256]; /* PnP identifier string may be up to * 256 bytes long */ pnpid_t pnpid; const symtab_t *t; int len; /* protocol has been specified with '-t' */ if (mouse.proto != P_UNKNOWN) bcopy(proto[mouse.proto], cur_proto, sizeof(cur_proto)); else { /* maybe this is an PnP mouse... */ if (mouse.flags & NoPnP) return mouse.proto; if (((len = pnpgets(mouse.mfd, pnpbuf)) <= 0) || !pnpparse(&pnpid, pnpbuf, len)) return mouse.proto; debug("PnP serial mouse: '%*.*s' '%*.*s' '%*.*s'", pnpid.neisaid, pnpid.neisaid, pnpid.eisaid, pnpid.ncompat, pnpid.ncompat, pnpid.compat, pnpid.ndescription, pnpid.ndescription, pnpid.description); /* we have a valid PnP serial device ID */ t = pnpproto(&pnpid); if (t != NULL) { mouse.proto = t->val; bcopy(proto[mouse.proto], cur_proto, sizeof(cur_proto)); } else mouse.proto = P_UNKNOWN; } debug("proto params: %02x %02x %02x %02x %d %02x %02x", cur_proto[0], cur_proto[1], cur_proto[2], cur_proto[3], cur_proto[4], cur_proto[5], cur_proto[6]); return mouse.proto; } /* mouse_protocol : decode bytes with the current mouse protocol */ int mouse_protocol(u_char rBuf, mousestatus_t * act) { /* MOUSE_MSS_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */ static int butmapmss[4] = { /* Microsoft, MouseMan, * GlidePoint, IntelliMouse, * Thinking Mouse */ 0, MOUSE_BUTTON3DOWN, MOUSE_BUTTON1DOWN, MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN, }; static int butmapmss2[4] = { /* Microsoft, MouseMan, * GlidePoint, Thinking Mouse */ 0, MOUSE_BUTTON4DOWN, MOUSE_BUTTON2DOWN, MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN, }; /* MOUSE_INTELLI_BUTTON?DOWN -> MOUSE_BUTTON?DOWN */ static int butmapintelli[4] = { /* IntelliMouse, NetMouse, * Mie Mouse, MouseMan+ */ 0, MOUSE_BUTTON2DOWN, MOUSE_BUTTON4DOWN, MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN, }; /* MOUSE_MSC_BUTTON?UP -> MOUSE_BUTTON?DOWN */ static int butmapmsc[8] = { /* MouseSystems, MMSeries, * Logitech, Bus, sysmouse */ 0, MOUSE_BUTTON3DOWN, MOUSE_BUTTON2DOWN, MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN, MOUSE_BUTTON1DOWN, MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN, MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN, MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN }; /* for Hitachi tablet */ static int butmaphit[8] = { /* MM HitTablet */ 0, MOUSE_BUTTON3DOWN, MOUSE_BUTTON2DOWN, MOUSE_BUTTON1DOWN, MOUSE_BUTTON4DOWN, MOUSE_BUTTON5DOWN, MOUSE_BUTTON6DOWN, MOUSE_BUTTON7DOWN, }; static int pBufP = 0; static unsigned char pBuf[8]; debug("received char 0x%x", (int) rBuf); /* * Hack for resyncing: We check here for a package that is: * a) illegal (detected by wrong data-package header) * b) invalid (0x80 == -128 and that might be wrong for MouseSystems) * c) bad header-package * * NOTE: b) is a violation of the MouseSystems-Protocol, since values of * -128 are allowed, but since they are very seldom we can easily * use them as package-header with no button pressed. * NOTE/2: On a PS/2 mouse any byte is valid as a data byte. Furthermore, * 0x80 is not valid as a header byte. For a PS/2 mouse we skip * checking data bytes. * For resyncing a PS/2 mouse we require the two most significant * bits in the header byte to be 0. These are the overflow bits, * and in case of an overflow we actually lose sync. Overflows * are very rare, however, and we quickly gain sync again after * an overflow condition. This is the best we can do. (Actually, * we could use bit 0x08 in the header byte for resyncing, since * that bit is supposed to be always on, but nobody told * Microsoft...) */ if (pBufP != 0 && ((rBuf & cur_proto[2]) != cur_proto[3] || rBuf == 0x80)) { pBufP = 0; /* skip package */ } if (pBufP == 0 && (rBuf & cur_proto[0]) != cur_proto[1]) return 0; /* is there an extra data byte? */ if (pBufP >= cur_proto[4] && (rBuf & cur_proto[0]) != cur_proto[1]) { /* * Hack for Logitech MouseMan Mouse - Middle button * * Unfortunately this mouse has variable length packets: the standard * Microsoft 3 byte packet plus an optional 4th byte whenever the * middle button status changes. * * We have already processed the standard packet with the movement * and button info. Now post an event message with the old status * of the left and right buttons and the updated middle button. */ /* * Even worse, different MouseMen and TrackMen differ in the 4th * byte: some will send 0x00/0x20, others 0x01/0x21, or even * 0x02/0x22, so I have to strip off the lower bits. * * [JCH-96/01/21] * HACK for ALPS "fourth button". (It's bit 0x10 of the "fourth byte" * and it is activated by tapping the glidepad with the finger! 8^) * We map it to bit bit3, and the reverse map in xf86Events just has * to be extended so that it is identified as Button 4. The lower * half of the reverse-map may remain unchanged. */ /* * [KY-97/08/03] * Receive the fourth byte only when preceding three bytes have * been detected (pBufP >= cur_proto[4]). In the previous * versions, the test was pBufP == 0; thus, we may have mistakingly * received a byte even if we didn't see anything preceding * the byte. */ if ((rBuf & cur_proto[5]) != cur_proto[6]) { pBufP = 0; return 0; } switch (mouse.proto) { /* * IntelliMouse, NetMouse (including NetMouse Pro) and Mie Mouse * always send the fourth byte, whereas the fourth byte is * optional for GlidePoint and ThinkingMouse. The fourth byte * is also optional for MouseMan+ and FirstMouse+ in their * native mode. It is always sent if they are in the IntelliMouse * compatible mode. */ case P_IMSERIAL: /* IntelliMouse, NetMouse, Mie Mouse, * MouseMan+ */ act->dx = act->dy = 0; act->dz = (rBuf & 0x08) ? (rBuf & 0x0f) - 16 : (rBuf & 0x0f); act->obutton = act->button; act->button = butmapintelli[(rBuf & MOUSE_MSS_BUTTONS) >> 4] | (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN)); break; default: act->dx = act->dy = act->dz = act->dw = 0; act->obutton = act->button; act->button = butmapmss2[(rBuf & MOUSE_MSS_BUTTONS) >> 4] | (act->obutton & (MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN)); break; } act->flags = ((act->dx || act->dy || act->dz || act->dw) ? MOUSE_POSCHANGED : 0) | (act->obutton ^ act->button); pBufP = 0; return act->flags; } if (pBufP >= cur_proto[4]) pBufP = 0; pBuf[pBufP++] = rBuf; if (pBufP != cur_proto[4]) return 0; /* * assembly full package */ debug("assembled full packet (len %d) %x,%x,%x,%x,%x,%x,%x,%x", cur_proto[4], pBuf[0], pBuf[1], pBuf[2], pBuf[3], pBuf[4], pBuf[5], pBuf[6], pBuf[7]); act->dz = 0; act->dw = 0; act->obutton = act->button; switch (mouse.proto) { case P_MS: /* Microsoft */ case P_LOGIMAN: /* MouseMan/TrackMan */ case P_GLIDEPOINT: /* GlidePoint */ case P_THINKING: /* ThinkingMouse */ case P_IMSERIAL: /* IntelliMouse, NetMouse, Mie Mouse, * MouseMan+ */ act->button = (act->obutton & (MOUSE_BUTTON2DOWN | MOUSE_BUTTON4DOWN)) | butmapmss[(pBuf[0] & MOUSE_MSS_BUTTONS) >> 4]; act->dx = (char) (((pBuf[0] & 0x03) << 6) | (pBuf[1] & 0x3F)); act->dy = (char) (((pBuf[0] & 0x0C) << 4) | (pBuf[2] & 0x3F)); break; case P_MSC: /* MouseSystems Corp */ act->button = butmapmsc[(~pBuf[0]) & MOUSE_MSC_BUTTONS]; act->dx = (char) (pBuf[1]) + (char) (pBuf[3]); act->dy = -((char) (pBuf[2]) + (char) (pBuf[4])); break; case P_MMHIT: /* MM HitTablet */ act->button = butmaphit[pBuf[0] & 0x07]; act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ? pBuf[1] : -pBuf[1]; act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? -pBuf[2] : pBuf[2]; break; case P_MM: /* MM Series */ case P_LOGI: /* Logitech Mice */ act->button = butmapmsc[pBuf[0] & MOUSE_MSC_BUTTONS]; act->dx = (pBuf[0] & MOUSE_MM_XPOSITIVE) ? pBuf[1] : -pBuf[1]; act->dy = (pBuf[0] & MOUSE_MM_YPOSITIVE) ? -pBuf[2] : pBuf[2]; break; /* * XXX removed the code for BusMouse and PS/2 protocols which * are now handled by wsmouse compatible mouse drivers XXX */ default: return 0; } /* * We don't reset pBufP here yet, as there may be an additional data * byte in some protocols. See above. */ /* has something changed? */ act->flags = ((act->dx || act->dy || act->dz || act->dw) ? MOUSE_POSCHANGED : 0) | (act->obutton ^ act->button); return act->flags; }