diff options
Diffstat (limited to 'hw/kdrive/linux/mouse.c')
| -rw-r--r-- | hw/kdrive/linux/mouse.c | 1013 |
1 files changed, 0 insertions, 1013 deletions
diff --git a/hw/kdrive/linux/mouse.c b/hw/kdrive/linux/mouse.c deleted file mode 100644 index 4a0c09a3e..000000000 --- a/hw/kdrive/linux/mouse.c +++ /dev/null @@ -1,1013 +0,0 @@ -/* - * $RCSId: xc/programs/Xserver/hw/kdrive/linux/mouse.c,v 1.6 2002/08/02 16:11:35 keithp Exp $ - * - * Copyright © 2001 Keith Packard - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of Keith Packard not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. Keith Packard makes no - * representations about the suitability of this software for any purpose. It - * is provided "as is" without express or implied warranty. - * - * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#define NEED_EVENTS -#include <errno.h> -#include <termios.h> -#include <X11/X.h> -#include <X11/Xproto.h> -#include <X11/Xpoll.h> -#include "inputstr.h" -#include "scrnintstr.h" -#include "kdrive.h" - -#undef DEBUG -#undef DEBUG_BYTES -#define KBUFIO_SIZE 256 -#define MOUSE_TIMEOUT 100 - -typedef struct _kbufio { - int fd; - unsigned char buf[KBUFIO_SIZE]; - int avail; - int used; -} Kbufio; - -static Bool -MouseWaitForReadable (int fd, int timeout) -{ - fd_set set; - struct timeval tv, *tp; - int n; - CARD32 done; - - done = GetTimeInMillis () + timeout; - for (;;) - { - FD_ZERO (&set); - FD_SET (fd, &set); - if (timeout == -1) - tp = 0; - else - { - tv.tv_sec = timeout / 1000; - tv.tv_usec = (timeout % 1000) * 1000; - tp = &tv; - } - n = select (fd + 1, &set, 0, 0, tp); - if (n > 0) - return TRUE; - if (n < 0 && (errno == EAGAIN || errno == EINTR)) - { - timeout = (int) (done - GetTimeInMillis ()); - if (timeout > 0) - continue; - } - break; - } - return FALSE; -} - -static int -MouseReadByte (Kbufio *b, int timeout) -{ - int n; - if (b->avail <= b->used) - { - if (timeout && !MouseWaitForReadable (b->fd, timeout)) - { -#ifdef DEBUG_BYTES - ErrorF ("\tTimeout %d\n", timeout); -#endif - return -1; - } - n = read (b->fd, b->buf, KBUFIO_SIZE); - if (n <= 0) - return -1; - b->avail = n; - b->used = 0; - } -#ifdef DEBUG_BYTES - ErrorF ("\tget %02x\n", b->buf[b->used]); -#endif - return b->buf[b->used++]; -} - -#if NOTUSED -static int -MouseFlush (Kbufio *b, char *buf, int size) -{ - CARD32 now = GetTimeInMillis (); - CARD32 done = now + 100; - int c; - int n = 0; - - while ((c = MouseReadByte (b, done - now)) != -1) - { - if (buf) - { - if (n == size) - { - memmove (buf, buf + 1, size - 1); - n--; - } - buf[n++] = c; - } - now = GetTimeInMillis (); - if ((INT32) (now - done) >= 0) - break; - } - return n; -} - -static int -MousePeekByte (Kbufio *b, int timeout) -{ - int c; - - c = MouseReadByte (b, timeout); - if (c != -1) - --b->used; - return c; -} -#endif /* NOTUSED */ - -static Bool -MouseWaitForWritable (int fd, int timeout) -{ - fd_set set; - struct timeval tv, *tp; - int n; - - FD_ZERO (&set); - FD_SET (fd, &set); - if (timeout == -1) - tp = 0; - else - { - tv.tv_sec = timeout / 1000; - tv.tv_usec = (timeout % 1000) * 1000; - tp = &tv; - } - n = select (fd + 1, 0, &set, 0, tp); - if (n > 0) - return TRUE; - return FALSE; -} - -static Bool -MouseWriteByte (int fd, unsigned char c, int timeout) -{ - int ret; - -#ifdef DEBUG_BYTES - ErrorF ("\tput %02x\n", c); -#endif - for (;;) - { - ret = write (fd, &c, 1); - if (ret == 1) - return TRUE; - if (ret == 0) - return FALSE; - if (errno != EWOULDBLOCK) - return FALSE; - if (!MouseWaitForWritable (fd, timeout)) - return FALSE; - } -} - -static Bool -MouseWriteBytes (int fd, unsigned char *c, int n, int timeout) -{ - while (n--) - if (!MouseWriteByte (fd, *c++, timeout)) - return FALSE; - return TRUE; -} - -#define MAX_MOUSE 10 /* maximum length of mouse protocol */ -#define MAX_SKIP 16 /* number of error bytes before switching */ -#define MAX_VALID 4 /* number of valid packets before accepting */ - -typedef struct _kmouseProt { - char *name; - Bool (*Complete) (KdMouseInfo *mi, unsigned char *ev, int ne); - int (*Valid) (KdMouseInfo *mi, unsigned char *ev, int ne); - Bool (*Parse) (KdMouseInfo *mi, unsigned char *ev, int ne); - Bool (*Init) (KdMouseInfo *mi); - unsigned char headerMask, headerValid; - unsigned char dataMask, dataValid; - Bool tty; - unsigned int c_iflag; - unsigned int c_oflag; - unsigned int c_lflag; - unsigned int c_cflag; - unsigned int speed; - unsigned char *init; - unsigned long state; -} KmouseProt; - -typedef enum _kmouseStage { - MouseBroken, MouseTesting, MouseWorking -} KmouseStage; - -typedef struct _kmouse { - Kbufio iob; - const KmouseProt *prot; - int i_prot; - KmouseStage stage; /* protocol verification stage */ - Bool tty; /* mouse device is a tty */ - int valid; /* sequential valid events */ - int tested; /* bytes scanned during Testing phase */ - int invalid;/* total invalid bytes for this protocol */ - unsigned long state; /* private per protocol, init to prot->state */ -} Kmouse; - -static int mouseValid (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - Kmouse *km = mi->driver; - const KmouseProt *prot = km->prot; - int i; - - for (i = 0; i < ne; i++) - if ((ev[i] & prot->headerMask) == prot->headerValid) - break; - if (i != 0) - return i; - for (i = 1; i < ne; i++) - if ((ev[i] & prot->dataMask) != prot->dataValid) - return -1; - return 0; -} - -static Bool threeComplete (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - return ne == 3; -} - -static Bool fourComplete (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - return ne == 4; -} - -static Bool fiveComplete (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - return ne == 5; -} - -static Bool MouseReasonable (KdMouseInfo *mi, unsigned long flags, int dx, int dy) -{ - Kmouse *km = mi->driver; - - if (km->stage == MouseWorking) - return TRUE; - if (dx < -50 || dx > 50) - { -#ifdef DEBUG - ErrorF ("Large X %d\n", dx); -#endif - return FALSE; - } - if (dy < -50 || dy > 50) - { -#ifdef DEBUG - ErrorF ("Large Y %d\n", dy); -#endif - return FALSE; - } - return TRUE; -} - -/* - * Standard PS/2 mouse protocol - */ -static Bool ps2Parse (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - Kmouse *km = mi->driver; - int dx, dy, dz; - unsigned long flags; - unsigned long flagsrelease = 0; - - flags = KD_MOUSE_DELTA; - if (ev[0] & 4) - flags |= KD_BUTTON_2; - if (ev[0] & 2) - flags |= KD_BUTTON_3; - if (ev[0] & 1) - flags |= KD_BUTTON_1; - - if (ne > 3) - { - dz = (int) (signed char) ev[3]; - if (dz < 0) - { - flags |= KD_BUTTON_4; - flagsrelease = KD_BUTTON_4; - } - else if (dz > 0) - { - flags |= KD_BUTTON_5; - flagsrelease = KD_BUTTON_5; - } - } - - dx = ev[1]; - if (ev[0] & 0x10) - dx -= 256; - dy = ev[2]; - if (ev[0] & 0x20) - dy -= 256; - dy = -dy; - if (!MouseReasonable (mi, flags, dx, dy)) - return FALSE; - if (km->stage == MouseWorking) - { - KdEnqueueMouseEvent (mi, flags, dx, dy); - if (flagsrelease) - { - flags &= ~flagsrelease; - KdEnqueueMouseEvent (mi, flags, dx, dy); - } - } - return TRUE; -} - -static Bool ps2Init (KdMouseInfo *mi); - -static const KmouseProt ps2Prot = { - "ps/2", - threeComplete, mouseValid, ps2Parse, ps2Init, - 0x08, 0x08, 0x00, 0x00, - FALSE -}; - -static const KmouseProt imps2Prot = { - "imps/2", - fourComplete, mouseValid, ps2Parse, ps2Init, - 0x08, 0x08, 0x00, 0x00, - FALSE -}; - -static const KmouseProt exps2Prot = { - "exps/2", - fourComplete, mouseValid, ps2Parse, ps2Init, - 0x08, 0x08, 0x00, 0x00, - FALSE -}; - -/* - * Once the mouse is known to speak ps/2 protocol, go and find out - * what advanced capabilities it has and turn them on - */ - -/* these extracted from FreeBSD 4.3 sys/dev/kbd/atkbdcreg.h */ - -/* aux device commands (sent to KBD_DATA_PORT) */ -#define PSMC_SET_SCALING11 0x00e6 -#define PSMC_SET_SCALING21 0x00e7 -#define PSMC_SET_RESOLUTION 0x00e8 -#define PSMC_SEND_DEV_STATUS 0x00e9 -#define PSMC_SET_STREAM_MODE 0x00ea -#define PSMC_SEND_DEV_DATA 0x00eb -#define PSMC_SET_REMOTE_MODE 0x00f0 -#define PSMC_SEND_DEV_ID 0x00f2 -#define PSMC_SET_SAMPLING_RATE 0x00f3 -#define PSMC_ENABLE_DEV 0x00f4 -#define PSMC_DISABLE_DEV 0x00f5 -#define PSMC_SET_DEFAULTS 0x00f6 -#define PSMC_RESET_DEV 0x00ff - -/* PSMC_SET_RESOLUTION argument */ -#define PSMD_RES_LOW 0 /* typically 25ppi */ -#define PSMD_RES_MEDIUM_LOW 1 /* typically 50ppi */ -#define PSMD_RES_MEDIUM_HIGH 2 /* typically 100ppi (default) */ -#define PSMD_RES_HIGH 3 /* typically 200ppi */ -#define PSMD_MAX_RESOLUTION PSMD_RES_HIGH - -/* PSMC_SET_SAMPLING_RATE */ -#define PSMD_MAX_RATE 255 /* FIXME: not sure if it's possible */ - -/* aux device ID */ -#define PSM_MOUSE_ID 0 -#define PSM_BALLPOINT_ID 2 -#define PSM_INTELLI_ID 3 -#define PSM_EXPLORER_ID 4 -#define PSM_4DMOUSE_ID 6 -#define PSM_4DPLUS_ID 8 - -static unsigned char ps2_init[] = { - PSMC_ENABLE_DEV, - 0, -}; - -#define NINIT_PS2 1 - -static unsigned char wheel_3button_init[] = { - PSMC_SET_SAMPLING_RATE, 200, - PSMC_SET_SAMPLING_RATE, 100, - PSMC_SET_SAMPLING_RATE, 80, - PSMC_SEND_DEV_ID, - 0, -}; - -#define NINIT_IMPS2 4 - -static unsigned char wheel_5button_init[] = { - PSMC_SET_SAMPLING_RATE, 200, - PSMC_SET_SAMPLING_RATE, 100, - PSMC_SET_SAMPLING_RATE, 80, - PSMC_SET_SAMPLING_RATE, 200, - PSMC_SET_SAMPLING_RATE, 200, - PSMC_SET_SAMPLING_RATE, 80, - PSMC_SEND_DEV_ID, - 0 -}; - -#define NINIT_EXPS2 7 - -static unsigned char intelli_init[] = { - PSMC_SET_SAMPLING_RATE, 200, - PSMC_SET_SAMPLING_RATE, 100, - PSMC_SET_SAMPLING_RATE, 80, - 0 -}; - -#define NINIT_INTELLI 3 - -static int -ps2SkipInit (KdMouseInfo *mi, int ninit, Bool ret_next) -{ - Kmouse *km = mi->driver; - int c = -1; - int skipping; - Bool waiting; - - skipping = 0; - waiting = FALSE; - while (ninit || ret_next) - { - c = MouseReadByte (&km->iob, MOUSE_TIMEOUT); - if (c == -1) - break; - /* look for ACK */ - if (c == 0xfa) - { - ninit--; - if (ret_next) - waiting = TRUE; - } - /* look for packet start -- not the response */ - else if ((c & 0x08) == 0x08) - waiting = FALSE; - else if (waiting) - break; - } - return c; -} - -static Bool -ps2Init (KdMouseInfo *mi) -{ - Kmouse *km = mi->driver; - int skipping; - Bool waiting; - int id; - unsigned char *init; - int ninit; - - /* Send Intellimouse initialization sequence */ - MouseWriteBytes (km->iob.fd, intelli_init, strlen (intelli_init), 100); - /* - * Send ID command - */ - if (!MouseWriteByte (km->iob.fd, PSMC_SEND_DEV_ID, 100)) - return FALSE; - skipping = 0; - waiting = FALSE; - id = ps2SkipInit (mi, 0, TRUE); - switch (id) { - case 3: - init = wheel_3button_init; - ninit = NINIT_IMPS2; - km->prot = &imps2Prot; - break; - case 4: - init = wheel_5button_init; - ninit = NINIT_EXPS2; - km->prot = &exps2Prot; - break; - default: - init = ps2_init; - ninit = NINIT_PS2; - km->prot = &ps2Prot; - break; - } - if (init) - MouseWriteBytes (km->iob.fd, init, strlen (init), 100); - /* - * Flush out the available data to eliminate responses to the - * initialization string. Make sure any partial event is - * skipped - */ - (void) ps2SkipInit (mi, ninit, FALSE); - return TRUE; -} - -static Bool busParse (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - Kmouse *km = mi->driver; - int dx, dy; - unsigned long flags; - - flags = KD_MOUSE_DELTA; - dx = (signed char) ev[1]; - dy = -(signed char) ev[2]; - if ((ev[0] & 4) == 0) - flags |= KD_BUTTON_1; - if ((ev[0] & 2) == 0) - flags |= KD_BUTTON_2; - if ((ev[0] & 1) == 0) - flags |= KD_BUTTON_3; - if (!MouseReasonable (mi, flags, dx, dy)) - return FALSE; - if (km->stage == MouseWorking) - KdEnqueueMouseEvent (mi, flags, dx, dy); - return TRUE; -} - -static const KmouseProt busProt = { - "bus", - threeComplete, mouseValid, busParse, 0, - 0xf8, 0x00, 0x00, 0x00, - FALSE -}; - -/* - * Standard MS serial protocol, three bytes - */ - -static Bool msParse (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - Kmouse *km = mi->driver; - int dx, dy; - unsigned long flags; - - flags = KD_MOUSE_DELTA; - - if (ev[0] & 0x20) - flags |= KD_BUTTON_1; - if (ev[0] & 0x10) - flags |= KD_BUTTON_3; - - dx = (signed char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F)); - dy = (signed char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F)); - if (!MouseReasonable (mi, flags, dx, dy)) - return FALSE; - if (km->stage == MouseWorking) - KdEnqueueMouseEvent (mi, flags, dx, dy); - return TRUE; -} - -static const KmouseProt msProt = { - "ms", - threeComplete, mouseValid, msParse, 0, - 0xc0, 0x40, 0xc0, 0x00, - TRUE, - IGNPAR, - 0, - 0, - CS7 | CSTOPB | CREAD | CLOCAL, - B1200, -}; - -/* - * Logitech mice send 3 or 4 bytes, the only way to tell is to look at the - * first byte of a synchronized protocol stream and see if it's got - * any bits turned on that can't occur in that fourth byte - */ -static Bool logiComplete (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - Kmouse *km = mi->driver; - - if ((ev[0] & 0x40) == 0x40) - return ne == 3; - if (km->stage != MouseBroken && (ev[0] & ~0x23) == 0) - return ne == 1; - return FALSE; -} - -static int logiValid (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - Kmouse *km = mi->driver; - const KmouseProt *prot = km->prot; - int i; - - for (i = 0; i < ne; i++) - { - if ((ev[i] & 0x40) == 0x40) - break; - if (km->stage != MouseBroken && (ev[i] & ~0x23) == 0) - break; - } - if (i != 0) - return i; - for (i = 1; i < ne; i++) - if ((ev[i] & prot->dataMask) != prot->dataValid) - return -1; - return 0; -} - -static Bool logiParse (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - Kmouse *km = mi->driver; - int dx, dy; - unsigned long flags; - - flags = KD_MOUSE_DELTA; - - if (ne == 3) - { - if (ev[0] & 0x20) - flags |= KD_BUTTON_1; - if (ev[0] & 0x10) - flags |= KD_BUTTON_3; - - dx = (signed char)(((ev[0] & 0x03) << 6) | (ev[1] & 0x3F)); - dy = (signed char)(((ev[0] & 0x0C) << 4) | (ev[2] & 0x3F)); - flags |= km->state & KD_BUTTON_2; - } - else - { - if (ev[0] & 0x20) - flags |= KD_BUTTON_2; - dx = 0; - dy = 0; - flags |= km->state & (KD_BUTTON_1|KD_BUTTON_3); - } - - if (!MouseReasonable (mi, flags, dx, dy)) - return FALSE; - if (km->stage == MouseWorking) - KdEnqueueMouseEvent (mi, flags, dx, dy); - return TRUE; -} - -static const KmouseProt logiProt = { - "logitech", - logiComplete, logiValid, logiParse, 0, - 0xc0, 0x40, 0xc0, 0x00, - TRUE, - IGNPAR, - 0, - 0, - CS7 | CSTOPB | CREAD | CLOCAL, - B1200, -}; - -/* - * Mouse systems protocol, 5 bytes - */ -static Bool mscParse (KdMouseInfo *mi, unsigned char *ev, int ne) -{ - Kmouse *km = mi->driver; - int dx, dy; - unsigned long flags; - - flags = KD_MOUSE_DELTA; - - if (!(ev[0] & 0x4)) - flags |= KD_BUTTON_1; - if (!(ev[0] & 0x2)) - flags |= KD_BUTTON_2; - if (!(ev[0] & 0x1)) - flags |= KD_BUTTON_3; - dx = (signed char)(ev[1]) + (signed char)(ev[3]); - dy = - ((signed char)(ev[2]) + (signed char)(ev[4])); - - if (!MouseReasonable (mi, flags, dx, dy)) - return FALSE; - if (km->stage == MouseWorking) - KdEnqueueMouseEvent (mi, flags, dx, dy); - return TRUE; -} - -static const KmouseProt mscProt = { - "msc", - fiveComplete, mouseValid, mscParse, 0, - 0xf8, 0x80, 0x00, 0x00, - TRUE, - IGNPAR, - 0, - 0, - CS8 | CSTOPB | CREAD | CLOCAL, - B1200, -}; - -/* - * Use logitech before ms -- they're the same except that - * logitech sometimes has a fourth byte - */ -static const KmouseProt *kmouseProts[] = { - &ps2Prot, &imps2Prot, &exps2Prot, &busProt, &logiProt, &msProt, &mscProt, -}; - -#define NUM_PROT (sizeof (kmouseProts) / sizeof (kmouseProts[0])) - -static void -MouseInitProtocol (Kmouse *km) -{ - int ret; - struct termios t; - - if (km->prot->tty) - { - ret = tcgetattr (km->iob.fd, &t); - - if (ret >= 0) - { - t.c_iflag = km->prot->c_iflag; - t.c_oflag = km->prot->c_oflag; - t.c_lflag = km->prot->c_lflag; - t.c_cflag = km->prot->c_cflag; - cfsetispeed (&t, km->prot->speed); - cfsetospeed (&t, km->prot->speed); - ret = tcsetattr (km->iob.fd, TCSANOW, &t); - } - } - km->stage = MouseBroken; - km->valid = 0; - km->tested = 0; - km->invalid = 0; - km->state = km->prot->state; -} - -static void -MouseFirstProtocol (Kmouse *km, char *prot) -{ - if (prot) - { - for (km->i_prot = 0; km->i_prot < NUM_PROT; km->i_prot++) - if (!strcmp (prot, kmouseProts[km->i_prot]->name)) - break; - if (km->i_prot == NUM_PROT) - { - int i; - ErrorF ("Unknown mouse protocol \"%s\". Pick one of:", prot); - for (i = 0; i < NUM_PROT; i++) - ErrorF (" %s", kmouseProts[i]->name); - ErrorF ("\n"); - } - else - { - km->prot = kmouseProts[km->i_prot]; - if (km->tty && !km->prot->tty) - ErrorF ("Mouse device is serial port, protocol %s is not serial protocol\n", - prot); - else if (!km->tty && km->prot->tty) - ErrorF ("Mouse device is not serial port, protocol %s is serial protocol\n", - prot); - } - } - if (!km->prot) - { - for (km->i_prot = 0; kmouseProts[km->i_prot]->tty != km->tty; km->i_prot++) - ; - km->prot = kmouseProts[km->i_prot]; - } - MouseInitProtocol (km); -} - -static void -MouseNextProtocol (Kmouse *km) -{ - do - { - if (!km->prot) - km->i_prot = 0; - else - if (++km->i_prot == NUM_PROT) km->i_prot = 0; - km->prot = kmouseProts[km->i_prot]; - } while (km->prot->tty != km->tty); - MouseInitProtocol (km); - ErrorF ("Switching to mouse protocol \"%s\"\n", km->prot->name); -} - -static void -MouseRead (int mousePort, void *closure) -{ - KdMouseInfo *mi = closure; - Kmouse *km = mi->driver; - unsigned char event[MAX_MOUSE]; - int ne; - int c; - int i; - int timeout; - - timeout = 0; - ne = 0; - for(;;) - { - c = MouseReadByte (&km->iob, timeout); - if (c == -1) - { - if (ne) - { - km->invalid += ne + km->tested; - km->valid = 0; - km->tested = 0; - km->stage = MouseBroken; - } - break; - } - event[ne++] = c; - i = (*km->prot->Valid) (mi, event, ne); - if (i != 0) - { -#ifdef DEBUG - ErrorF ("Mouse protocol %s broken %d of %d bytes bad\n", - km->prot->name, i > 0 ? i : ne, ne); -#endif - if (i > 0 && i < ne) - { - ne -= i; - memmove (event, event + i, ne); - } - else - { - i = ne; - ne = 0; - } - km->invalid += i + km->tested; - km->valid = 0; - km->tested = 0; - if (km->stage == MouseWorking) - km->i_prot--; - km->stage = MouseBroken; - if (km->invalid > MAX_SKIP) - { - MouseNextProtocol (km); - ne = 0; - } - timeout = 0; - } - else - { - if ((*km->prot->Complete) (mi, event, ne)) - { - if ((*km->prot->Parse) (mi, event, ne)) - { - switch (km->stage) - { - case MouseBroken: -#ifdef DEBUG - ErrorF ("Mouse protocol %s seems OK\n", - km->prot->name); -#endif - /* do not zero invalid to accumulate invalid bytes */ - km->valid = 0; - km->tested = 0; - km->stage = MouseTesting; - /* fall through ... */ - case MouseTesting: - km->valid++; - km->tested += ne; - if (km->valid > MAX_VALID) - { -#ifdef DEBUG - ErrorF ("Mouse protocol %s working\n", - km->prot->name); -#endif - km->stage = MouseWorking; - km->invalid = 0; - km->tested = 0; - km->valid = 0; - if (km->prot->Init && !(*km->prot->Init) (mi)) - km->stage = MouseBroken; - } - break; - case MouseWorking: - break; - } - } - else - { - km->invalid += ne + km->tested; - km->valid = 0; - km->tested = 0; - km->stage = MouseBroken; - } - ne = 0; - timeout = 0; - } - else - timeout = MOUSE_TIMEOUT; - } - } -} - -int MouseInputType; - -char *kdefaultMouse[] = { - "/dev/mouse", - "/dev/psaux", - "/dev/input/mice", - "/dev/adbmouse", - "/dev/ttyS0", - "/dev/ttyS1", -}; - -#define NUM_DEFAULT_MOUSE (sizeof (kdefaultMouse) / sizeof (kdefaultMouse[0])) - -static Bool -MouseInit (void) -{ - int i; - int fd; - Kmouse *km; - KdMouseInfo *mi, *next; - int n = 0; - char *prot; - - if (!MouseInputType) - MouseInputType = KdAllocInputType (); - - for (mi = kdMouseInfo; mi; mi = next) - { - next = mi->next; - prot = mi->prot; - if (mi->inputType) - continue; - if (!mi->name) - { - for (i = 0; i < NUM_DEFAULT_MOUSE; i++) - { - fd = open (kdefaultMouse[i], 2); - if (fd >= 0) - { - mi->name = KdSaveString (kdefaultMouse[i]); - break; - } - } - } - else - fd = open (mi->name, 2); - - if (fd >= 0) - { - km = (Kmouse *) xalloc (sizeof (Kmouse)); - if (km) - { - km->iob.fd = fd; - km->iob.avail = km->iob.used = 0; - km->prot = 0; - km->i_prot = 0; - km->tty = isatty (fd); - mi->driver = km; - mi->inputType = MouseInputType; - MouseFirstProtocol (km, mi->prot); - if (KdRegisterFd (MouseInputType, fd, MouseRead, (void *) mi)) - n++; - } - else - close (fd); - } - } - return TRUE; -} - -static void -MouseFini (void) -{ - KdMouseInfo *mi; - - KdUnregisterFds (MouseInputType, TRUE); - for (mi = kdMouseInfo; mi; mi = mi->next) - { - if (mi->inputType == MouseInputType) - { - xfree (mi->driver); - mi->driver = 0; - mi->inputType = 0; - } - } -} - -KdMouseFuncs LinuxMouseFuncs = { - MouseInit, - MouseFini, -}; |