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