/* * Copyright 2002-2003 Red Hat Inc., Durham, North Carolina. * * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation on the rights to use, copy, modify, merge, * publish, distribute, sublicense, and/or sell copies of the Software, * and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ /* * Authors: * Rickard E. (Rik) Faith <faith@redhat.com> * */ /** \file * * Routines that are common between #usb-keyboard.c, #usb-mouse.c, and * #usb-other.c */ #ifdef HAVE_DMX_CONFIG_H #include <dmx-config.h> #endif #include "usb-private.h" #define USB_COMMON_DEBUG 1 /*****************************************************************************/ /* Define some macros to make it easier to move this file to another * part of the Xserver tree. All calls to the dmx* layer are #defined * here for the .c file. The .h file will also have to be edited. */ #include "usb-mouse.h" #define GETPRIV myPrivate *priv \ = ((DMXLocalInputInfoPtr)(pDev->devicePrivate))->private #define GETNAME ((DMXLocalInputInfoPtr)(pDevice->public.devicePrivate)) \ ->name #define LOG0(f) dmxLog(dmxDebug,f) #define LOG1(f,a) dmxLog(dmxDebug,f,a) #define LOG2(f,a,b) dmxLog(dmxDebug,f,a,b) #define LOG3(f,a,b,c) dmxLog(dmxDebug,f,a,b,c) #define LOG1INPUT(p,f,a) dmxLogInput(p->dmxInput,f,a) #define LOG3INPUT(p,f,a,b,c) dmxLogInput(p->dmxInput,f,a,b,c) #define LOG5INPUT(p,f,a,b,c,d,e) dmxLogInput(p->dmxInput,f,a,b,c,d,e) #define FATAL0(f) dmxLog(dmxFatal,f) #define FATAL1(f,a) dmxLog(dmxFatal,f,a) #define FATAL2(f,a,b) dmxLog(dmxFatal,f,a,b) #define MOTIONPROC dmxMotionProcPtr #define ENQUEUEPROC dmxEnqueueProcPtr #define CHECKPROC dmxCheckSpecialProcPtr #define BLOCK DMXBlockType /* End of interface definitions. */ /*****************************************************************************/ /** Read an event from the \a pDev device. If the event is a motion * event, enqueue it with the \a motion function. Otherwise, enqueue * the event with the \a enqueue function. The \a block type is passed * to the functions so that they may block SIGIO handling as appropriate * to the caller of this function. * * Since USB devices return EV_KEY events for buttons and keys, \a * minButton is used to decide if a Button or Key event should be * queued.*/ void usbRead(DevicePtr pDev, MOTIONPROC motion, ENQUEUEPROC enqueue, int minButton, BLOCK block) { GETPRIV; struct input_event raw; int v[DMX_MAX_AXES]; int axis; #define PRESS(b) \ do { \ enqueue(pDev, ButtonPress, 0, 0, NULL, block); \ } while (0) #define RELEASE(b) \ do { \ enqueue(pDev, ButtonRelease, 0, 0, NULL, block); \ } while (0) while (read(priv->fd, &raw, sizeof(raw)) > 0) { #if USB_COMMON_DEBUG > 1 LOG3("USB: type = %d, code = 0x%02x, value = %d\n", raw.type, raw.code, raw.value); #endif switch (raw.type) { case EV_KEY: /* raw.value = 1 for first, 2 for repeat */ if (raw.code > minButton) { if (raw.value) PRESS((raw.code & 0x0f) + 1); else RELEASE((raw.code & 0x0f) + 1); } else { enqueue(pDev, raw.value ? KeyPress : KeyRelease, 0, 0, NULL, block); } break; case EV_REL: switch (raw.code) { case REL_X: v[0] = -raw.value; v[1] = 0; motion(pDev, v, 0, 2, DMX_RELATIVE, block); break; case REL_Y: v[0] = 0; v[1] = -raw.value; motion(pDev, v, 0, 2, DMX_RELATIVE, block); break; case REL_WHEEL: if ((int)raw.value > 0) { PRESS(4); RELEASE(4); } else if ((int)raw.value < 0) { PRESS(5); RELEASE(5); } break; default: memset(v, 0, sizeof(v)); axis = priv->relmap[raw.code]; v[axis] = raw.value; motion(pDev, v, axis, 1, DMX_RELATIVE, block); } break; case EV_ABS: memset(v, 0, sizeof(v)); axis = priv->absmap[raw.code]; v[axis] = raw.value; motion(pDev, v, axis, 1, DMX_ABSOLUTE, block); break; } } } #define test_bit(bit) (priv->mask[(bit)/8] & (1 << ((bit)%8))) #define test_bits(bit) (bits[(bit)/8] & (1 << ((bit)%8))) static void usbPrint(myPrivate *priv, const char *filename, const char *devname, int fd) { int j, k; DeviceIntPtr pDevice = priv->pDevice; unsigned char bits[KEY_MAX/8 + 1]; /* RATS: Use ok assuming that * KEY_MAX is greater than * REL_MAX, ABS_MAX, SND_MAX, and * LED_MAX. */ LOG3INPUT(priv, "%s (%s) using %s\n", pDevice->name, GETNAME, filename); LOG1INPUT(priv, " %s\n", devname); for (j = 0; j < EV_MAX; j++) { if (test_bit(j)) { const char *type = "unknown"; char extra[256]; /* FIXME: may cause buffer overflow */ extra[0] = '\0'; switch(j) { case EV_KEY: type = "keys/buttons"; break; case EV_REL: type = "relative"; memset(bits, 0, sizeof(bits)); ioctl(priv->fd, EVIOCGBIT(EV_REL, sizeof(bits)), bits); for (k = 0; k < REL_MAX; k++) { if (test_bits(k)) switch (k) { case REL_X: strcat(extra, " X"); break; case REL_Y: strcat(extra, " Y"); break; case REL_Z: strcat(extra, " Z"); break; case REL_HWHEEL: strcat(extra, " HWheel"); break; case REL_DIAL: strcat(extra, " Dial"); break; case REL_WHEEL: strcat(extra, " Wheel"); break; case REL_MISC: strcat(extra, " Misc"); break; } } break; case EV_ABS: type = "absolute"; memset(bits, 0, sizeof(bits)); ioctl(priv->fd, EVIOCGBIT(EV_ABS, sizeof(bits)), bits); for (k = 0; k < ABS_MAX; k++) { if (test_bits(k)) switch (k) { case ABS_X: strcat(extra," X"); break; case ABS_Y: strcat(extra," Y"); break; case ABS_Z: strcat(extra," Z"); break; case ABS_RX: strcat(extra," RX"); break; case ABS_RY: strcat(extra," RY"); break; case ABS_RZ: strcat(extra," RZ"); break; case ABS_THROTTLE: strcat(extra," Throttle");break; case ABS_RUDDER: strcat(extra," Rudder"); break; case ABS_WHEEL: strcat(extra," Wheel"); break; case ABS_GAS: strcat(extra," Gas"); break; case ABS_BRAKE: strcat(extra," Break"); break; case ABS_HAT0X: strcat(extra," Hat0X"); break; case ABS_HAT0Y: strcat(extra," Hat0Y"); break; case ABS_HAT1X: strcat(extra," Hat1X"); break; case ABS_HAT1Y: strcat(extra," Hat1Y"); break; case ABS_HAT2X: strcat(extra," Hat2X"); break; case ABS_HAT2Y: strcat(extra," Hat2Y"); break; case ABS_HAT3X: strcat(extra," Hat3X"); break; case ABS_HAT3Y: strcat(extra," Hat3Y"); break; case ABS_PRESSURE: strcat(extra," Pressure");break; case ABS_DISTANCE: strcat(extra," Distance");break; case ABS_TILT_X: strcat(extra," TiltX"); break; case ABS_TILT_Y: strcat(extra," TiltY"); break; case ABS_MISC: strcat(extra," Misc"); break; } } break; case EV_MSC: type = "reserved"; break; case EV_LED: type = "leds"; memset(bits, 0, sizeof(bits)); ioctl(priv->fd, EVIOCGBIT(EV_LED, sizeof(bits)), bits); for (k = 0; k < LED_MAX; k++) { if (test_bits(k)) switch (k) { case LED_NUML: strcat(extra," NumLock"); break; case LED_CAPSL: strcat(extra," CapsLock"); break; case LED_SCROLLL: strcat(extra," ScrlLock"); break; case LED_COMPOSE: strcat(extra," Compose"); break; case LED_KANA: strcat(extra," Kana"); break; case LED_SLEEP: strcat(extra," Sleep"); break; case LED_SUSPEND: strcat(extra," Suspend"); break; case LED_MUTE: strcat(extra," Mute"); break; case LED_MISC: strcat(extra," Misc"); break; } } break; case EV_SND: type = "sound"; memset(bits, 0, sizeof(bits)); ioctl(priv->fd, EVIOCGBIT(EV_SND, sizeof(bits)), bits); for (k = 0; k < SND_MAX; k++) { if (test_bits(k)) switch (k) { case SND_CLICK: strcat(extra," Click"); break; case SND_BELL: strcat(extra," Bell"); break; } } break; case EV_REP: type = "repeat"; break; case EV_FF: type = "feedback"; break; } LOG5INPUT(priv, " Feature 0x%02x = %s%s%s%s\n", j, type, extra[0] ? " [" : "", extra[0] ? extra+1 : "", extra[0] ? "]" : ""); } } } /** Initialized \a pDev as a \a usbMouse, \a usbKeyboard, or \a usbOther device. */ void usbInit(DevicePtr pDev, usbType type) { GETPRIV; char name[64]; /* RATS: Only used in XmuSnprintf */ int i, j, k; char buf[256] = { 0, }; /* RATS: Use ok */ int version; unsigned char bits[KEY_MAX/8 + 1]; /* RATS: Use ok assuming that * KEY_MAX is greater than * REL_MAX, ABS_MAX, SND_MAX, and * LED_MAX. */ if (priv->fd >=0) return; for (i = 0; i < 32; i++) { XmuSnprintf(name, sizeof(name), "/dev/input/event%d", i); if ((priv->fd = open(name, O_RDWR | O_NONBLOCK, 0)) >= 0) { ioctl(priv->fd, EVIOCGVERSION, &version); ioctl(priv->fd, EVIOCGNAME(sizeof(buf)), buf); memset(priv->mask, 0, sizeof(priv->mask)); ioctl(priv->fd, EVIOCGBIT(0, sizeof(priv->mask)), priv->mask); for (j = 0; j < EV_MAX; j++) { if (test_bit(j)) { switch(j) { case EV_REL: memset(bits, 0, sizeof(bits)); ioctl(priv->fd, EVIOCGBIT(EV_REL, sizeof(bits)), bits); for (k = 0; k < REL_MAX; k++) { if (test_bits(k)) { if (k == REL_X) priv->relmap[k] = 0; else if (k == REL_Y) priv->relmap[k] = 1; else priv->relmap[k] = 2 + priv->numAbs; ++priv->numRel; } } break; case EV_ABS: memset(bits, 0, sizeof(bits)); ioctl(priv->fd, EVIOCGBIT(EV_ABS, sizeof(bits)), bits); for (k = 0; k < ABS_MAX; k++) { if (test_bits(k)) { priv->absmap[k] = priv->numAbs; ++priv->numAbs; } } break; case EV_LED: memset(bits, 0, sizeof(bits)); ioctl(priv->fd, EVIOCGBIT(EV_LED, sizeof(bits)), bits); for (k = 0; k < LED_MAX; k++) { if (test_bits(k)) ++priv->numLeds; } break; } } } switch (type) { case usbMouse: if (test_bit(EV_REL) && test_bit(EV_KEY)) goto found; break; case usbKeyboard: if (test_bit(EV_KEY) && test_bit(EV_LED) && !test_bit(EV_ABS)) goto found; break; case usbOther: if (!(test_bit(EV_REL) && test_bit(EV_KEY)) && !(test_bit(EV_KEY) && test_bit(EV_LED) && !test_bit(EV_ABS))) goto found; break; } close(priv->fd); priv->fd = -1; } } if (priv->fd < 0) FATAL1("usbInit: Cannot open /dev/input/event* port (%s)\n" " If you have not done so, you may need to:\n" " rmmod mousedev; rmmod keybdev\n" " modprobe evdev\n", strerror(errno)); found: usbPrint(priv, name, buf, priv->fd); } /** Turn \a pDev off (i.e., stop taking input from \a pDev). */ void usbOff(DevicePtr pDev) { GETPRIV; if (priv->fd >= 0) close(priv->fd); priv->fd = -1; } /** Create a private structure for use within this file. */ pointer usbCreatePrivate(DeviceIntPtr pDevice) { myPrivate *priv = xalloc(sizeof(*priv)); memset(priv, 0, sizeof(*priv)); priv->fd = -1; priv->pDevice = pDevice; return priv; } /** Destroy a private structure. */ void usbDestroyPrivate(pointer priv) { if (priv) xfree(priv); }