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xserver/hw/dmx/input/usb-keyboard.c

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/* Portions of this file were derived from the following files:
*
**********************************************************************
*
* xfree86/common/xf86KbdLnx.c
*
* Linux version of keymapping setup. The kernel (since 0.99.14) has support
* for fully remapping the keyboard, but there are some differences between
* the Linux map and the SVR4 map (esp. in the extended keycodes). We also
* remove the restriction on what keycodes can be remapped.
* Orest Zborowski.
*
* Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
*
* 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 Thomas Roell not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Thomas Roell makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THOMAS ROELL 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.
*
*/
/*
* Copyright 2001,2002 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
*
* This code implements a low-level device driver for a USB keyboard
* under Linux. The keymap description is derived from code by Thomas
* Roell, Orest Zborowski. */
#ifdef HAVE_DMX_CONFIG_H
#include <dmx-config.h>
#endif
#include "atKeynames.h"
#include "usb-private.h"
#define USB_KEYBOARD_DEBUG 0
/*****************************************************************************/
/* 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-keyboard.h"
#include <xkbsrv.h>
#define GETPRIV myPrivate *priv \
= ((DMXLocalInputInfoPtr)(pDev->devicePrivate))->private
#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 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. */
/*****************************************************************************/
#define GLYPHS_PER_KEY 4
#define NUM_KEYCODES 248
#define MIN_KEYCODE 8
#define MAX_KEYCODE (NUM_KEYCODES + MIN_KEYCODE - 1)
static KeySym map[NUM_KEYCODES * GLYPHS_PER_KEY] = {
/* Table modified from xc/programs/Xserver/hw/xfree86/common/xf86Keymap.h */
/* 0x00 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x01 */ XK_Escape, NoSymbol, NoSymbol, NoSymbol,
/* 0x02 */ XK_1, XK_exclam, NoSymbol, NoSymbol,
/* 0x03 */ XK_2, XK_at, NoSymbol, NoSymbol,
/* 0x04 */ XK_3, XK_numbersign, NoSymbol, NoSymbol,
/* 0x05 */ XK_4, XK_dollar, NoSymbol, NoSymbol,
/* 0x06 */ XK_5, XK_percent, NoSymbol, NoSymbol,
/* 0x07 */ XK_6, XK_asciicircum, NoSymbol, NoSymbol,
/* 0x08 */ XK_7, XK_ampersand, NoSymbol, NoSymbol,
/* 0x09 */ XK_8, XK_asterisk, NoSymbol, NoSymbol,
/* 0x0a */ XK_9, XK_parenleft, NoSymbol, NoSymbol,
/* 0x0b */ XK_0, XK_parenright, NoSymbol, NoSymbol,
/* 0x0c */ XK_minus, XK_underscore, NoSymbol, NoSymbol,
/* 0x0d */ XK_equal, XK_plus, NoSymbol, NoSymbol,
/* 0x0e */ XK_BackSpace, NoSymbol, NoSymbol, NoSymbol,
/* 0x0f */ XK_Tab, XK_ISO_Left_Tab, NoSymbol, NoSymbol,
/* 0x10 */ XK_Q, NoSymbol, NoSymbol, NoSymbol,
/* 0x11 */ XK_W, NoSymbol, NoSymbol, NoSymbol,
/* 0x12 */ XK_E, NoSymbol, NoSymbol, NoSymbol,
/* 0x13 */ XK_R, NoSymbol, NoSymbol, NoSymbol,
/* 0x14 */ XK_T, NoSymbol, NoSymbol, NoSymbol,
/* 0x15 */ XK_Y, NoSymbol, NoSymbol, NoSymbol,
/* 0x16 */ XK_U, NoSymbol, NoSymbol, NoSymbol,
/* 0x17 */ XK_I, NoSymbol, NoSymbol, NoSymbol,
/* 0x18 */ XK_O, NoSymbol, NoSymbol, NoSymbol,
/* 0x19 */ XK_P, NoSymbol, NoSymbol, NoSymbol,
/* 0x1a */ XK_bracketleft, XK_braceleft, NoSymbol, NoSymbol,
/* 0x1b */ XK_bracketright, XK_braceright, NoSymbol, NoSymbol,
/* 0x1c */ XK_Return, NoSymbol, NoSymbol, NoSymbol,
/* 0x1d */ XK_Control_L, NoSymbol, NoSymbol, NoSymbol,
/* 0x1e */ XK_A, NoSymbol, NoSymbol, NoSymbol,
/* 0x1f */ XK_S, NoSymbol, NoSymbol, NoSymbol,
/* 0x20 */ XK_D, NoSymbol, NoSymbol, NoSymbol,
/* 0x21 */ XK_F, NoSymbol, NoSymbol, NoSymbol,
/* 0x22 */ XK_G, NoSymbol, NoSymbol, NoSymbol,
/* 0x23 */ XK_H, NoSymbol, NoSymbol, NoSymbol,
/* 0x24 */ XK_J, NoSymbol, NoSymbol, NoSymbol,
/* 0x25 */ XK_K, NoSymbol, NoSymbol, NoSymbol,
/* 0x26 */ XK_L, NoSymbol, NoSymbol, NoSymbol,
/* 0x27 */ XK_semicolon, XK_colon, NoSymbol, NoSymbol,
/* 0x28 */ XK_quoteright, XK_quotedbl, NoSymbol, NoSymbol,
/* 0x29 */ XK_quoteleft, XK_asciitilde, NoSymbol, NoSymbol,
/* 0x2a */ XK_Shift_L, NoSymbol, NoSymbol, NoSymbol,
/* 0x2b */ XK_backslash, XK_bar, NoSymbol, NoSymbol,
/* 0x2c */ XK_Z, NoSymbol, NoSymbol, NoSymbol,
/* 0x2d */ XK_X, NoSymbol, NoSymbol, NoSymbol,
/* 0x2e */ XK_C, NoSymbol, NoSymbol, NoSymbol,
/* 0x2f */ XK_V, NoSymbol, NoSymbol, NoSymbol,
/* 0x30 */ XK_B, NoSymbol, NoSymbol, NoSymbol,
/* 0x31 */ XK_N, NoSymbol, NoSymbol, NoSymbol,
/* 0x32 */ XK_M, NoSymbol, NoSymbol, NoSymbol,
/* 0x33 */ XK_comma, XK_less, NoSymbol, NoSymbol,
/* 0x34 */ XK_period, XK_greater, NoSymbol, NoSymbol,
/* 0x35 */ XK_slash, XK_question, NoSymbol, NoSymbol,
/* 0x36 */ XK_Shift_R, NoSymbol, NoSymbol, NoSymbol,
/* 0x37 */ XK_KP_Multiply, NoSymbol, NoSymbol, NoSymbol,
/* 0x38 */ XK_Alt_L, XK_Meta_L, NoSymbol, NoSymbol,
/* 0x39 */ XK_space, NoSymbol, NoSymbol, NoSymbol,
/* 0x3a */ XK_Caps_Lock, NoSymbol, NoSymbol, NoSymbol,
/* 0x3b */ XK_F1, NoSymbol, NoSymbol, NoSymbol,
/* 0x3c */ XK_F2, NoSymbol, NoSymbol, NoSymbol,
/* 0x3d */ XK_F3, NoSymbol, NoSymbol, NoSymbol,
/* 0x3e */ XK_F4, NoSymbol, NoSymbol, NoSymbol,
/* 0x3f */ XK_F5, NoSymbol, NoSymbol, NoSymbol,
/* 0x40 */ XK_F6, NoSymbol, NoSymbol, NoSymbol,
/* 0x41 */ XK_F7, NoSymbol, NoSymbol, NoSymbol,
/* 0x42 */ XK_F8, NoSymbol, NoSymbol, NoSymbol,
/* 0x43 */ XK_F9, NoSymbol, NoSymbol, NoSymbol,
/* 0x44 */ XK_F10, NoSymbol, NoSymbol, NoSymbol,
/* 0x45 */ XK_Num_Lock, NoSymbol, NoSymbol, NoSymbol,
/* 0x46 */ XK_Scroll_Lock, NoSymbol, NoSymbol, NoSymbol,
/* 0x47 */ XK_KP_Home, XK_KP_7, NoSymbol, NoSymbol,
/* 0x48 */ XK_KP_Up, XK_KP_8, NoSymbol, NoSymbol,
/* 0x49 */ XK_KP_Prior, XK_KP_9, NoSymbol, NoSymbol,
/* 0x4a */ XK_KP_Subtract, NoSymbol, NoSymbol, NoSymbol,
/* 0x4b */ XK_KP_Left, XK_KP_4, NoSymbol, NoSymbol,
/* 0x4c */ XK_KP_Begin, XK_KP_5, NoSymbol, NoSymbol,
/* 0x4d */ XK_KP_Right, XK_KP_6, NoSymbol, NoSymbol,
/* 0x4e */ XK_KP_Add, NoSymbol, NoSymbol, NoSymbol,
/* 0x4f */ XK_KP_End, XK_KP_1, NoSymbol, NoSymbol,
/* 0x50 */ XK_KP_Down, XK_KP_2, NoSymbol, NoSymbol,
/* 0x51 */ XK_KP_Next, XK_KP_3, NoSymbol, NoSymbol,
/* 0x52 */ XK_KP_Insert, XK_KP_0, NoSymbol, NoSymbol,
/* 0x53 */ XK_KP_Delete, XK_KP_Decimal, NoSymbol, NoSymbol,
/* 0x54 */ XK_Sys_Req, NoSymbol, NoSymbol, NoSymbol,
/* 0x55 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x56 */ XK_less, XK_greater, NoSymbol, NoSymbol,
/* 0x57 */ XK_F11, NoSymbol, NoSymbol, NoSymbol,
/* 0x58 */ XK_F12, NoSymbol, NoSymbol, NoSymbol,
/* 0x59 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x5a */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x5b */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x5c */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x5d */ XK_Begin, NoSymbol, NoSymbol, NoSymbol,
/* 0x5e */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x5f */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x60 */ XK_KP_Enter, NoSymbol, NoSymbol, NoSymbol,
/* 0x61 */ XK_Control_R, NoSymbol, NoSymbol, NoSymbol,
/* 0x62 */ XK_KP_Divide, NoSymbol, NoSymbol, NoSymbol,
/* 0x63 */ XK_Print, NoSymbol, NoSymbol, NoSymbol,
/* 0x64 */ XK_Alt_R, XK_Meta_R, NoSymbol, NoSymbol,
/* 0x65 */ XK_Break, NoSymbol, NoSymbol, NoSymbol,
/* 0x66 */ XK_Home, NoSymbol, NoSymbol, NoSymbol,
/* 0x67 */ XK_Up, NoSymbol, NoSymbol, NoSymbol,
/* 0x68 */ XK_Prior, NoSymbol, NoSymbol, NoSymbol,
/* 0x69 */ XK_Left, NoSymbol, NoSymbol, NoSymbol,
/* 0x6a */ XK_Right, NoSymbol, NoSymbol, NoSymbol,
/* 0x6b */ XK_End, NoSymbol, NoSymbol, NoSymbol,
/* 0x6c */ XK_Down, NoSymbol, NoSymbol, NoSymbol,
/* 0x6d */ XK_Next, NoSymbol, NoSymbol, NoSymbol,
/* 0x6e */ XK_Insert, NoSymbol, NoSymbol, NoSymbol,
/* 0x6f */ XK_Delete, NoSymbol, NoSymbol, NoSymbol,
/* 0x70 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x71 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x72 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x73 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x74 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x75 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x76 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x77 */ XK_Pause, NoSymbol, NoSymbol, NoSymbol,
/* 0x78 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x79 */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x7a */ XK_Menu, NoSymbol, NoSymbol, NoSymbol,
/* 0x7b */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x7c */ NoSymbol, NoSymbol, NoSymbol, NoSymbol,
/* 0x7d */ XK_Super_L, NoSymbol, NoSymbol, NoSymbol,
/* 0x7e */ XK_Super_R, NoSymbol, NoSymbol, NoSymbol,
/* 0x7f */ XK_Menu, NoSymbol, NoSymbol, NoSymbol,
};
static int
kbdUSBKeyDown(myPrivate * priv, int keyCode)
{
CARD8 byte = keyCode >> 5;
CARD32 bit = 1 << (keyCode & 0x1f);
if (byte > NUM_STATE_ENTRIES)
return 0;
return priv->kbdState[byte] & bit;
}
static void
kbdUSBKeyState(myPrivate * priv, int type, int keyCode)
{
CARD8 byte = keyCode >> 5;
CARD32 bit = 1 << (keyCode & 0x1f);
if (byte > NUM_STATE_ENTRIES)
return;
if (type == KeyPress)
priv->kbdState[byte] |= bit;
else
priv->kbdState[byte] &= ~bit;
}
/** Set the LEDs. */
void
kbdUSBCtrl(DevicePtr pDev, KeybdCtrl * ctrl)
{
GETPRIV;
struct timeval tv;
struct input_event event;
int i, led;
gettimeofday(&tv, NULL);
for (i = 0; i < 5; i++) {
event.time.tv_sec = tv.tv_sec;
event.time.tv_usec = tv.tv_usec;
event.type = EV_LED;
if (i == 0)
led = 1; /* LED_CAPSL == 0x01 */
else if (i == 1)
led = 0; /* LED_NUML == 0x00 */
else
led = i;
event.code = led;
event.value = ! !(ctrl->leds & (1 << led));
write(priv->fd, &event, sizeof(event));
}
}
/** Initialize \a pDev using #usbInit. */
void
kbdUSBInit(DevicePtr pDev)
{
usbInit(pDev, usbKeyboard);
}
static void
kbdUSBConvert(DevicePtr pDev,
unsigned int scanCode,
int value,
ENQUEUEPROC enqueue, CHECKPROC checkspecial, BLOCK block)
{
GETPRIV;
XkbSrvInfoPtr xkbi = priv->pKeyboard->key->xkbInfo;
int type;
int keyCode;
KeySym keySym = NoSymbol;
int switching;
/* Set up xEvent information */
type = value ? KeyPress : KeyRelease;
keyCode = (scanCode & 0xff) + MIN_KEYCODE;
/* Handle repeats */
if (keyCode >= xkbi->desc->min_key_code &&
keyCode <= xkbi->desc->max_key_code) {
int effectiveGroup = XkbGetEffectiveGroup(xkbi,
&xkbi->state,
scanCode);
keySym = XkbKeySym(xkbi->desc, scanCode, effectiveGroup);
#if 0
switch (keySym) {
case XK_Num_Lock:
case XK_Scroll_Lock:
case XK_Shift_Lock:
case XK_Caps_Lock:
/* Ignore releases and all but first press */
if (kbdLinuxModIgnore(priv, &xE, keySym))
return;
if (kbdLinuxKeyDown(priv, &xE))
xE.u.u.type = KeyRelease;
else
xE.u.u.type = KeyPress;
break;
}
#endif
/* If key is already down, ignore or autorepeat */
if (type == KeyPress && kbdUSBKeyDown(priv, keyCode)) {
KbdFeedbackClassRec *feed = priv->pDevice->kbdfeed;
/* No auto-repeat? */
if ((feed && !feed->ctrl.autoRepeat)
|| priv->pDevice->key->xkbInfo->desc->map->modmap[keyCode]
|| (feed && !(feed->ctrl.autoRepeats[keyCode >> 3]
& (1 << (keyCode & 7)))))
return; /* Ignore */
/* Do auto-repeat */
enqueue(pDev, KeyRelease, keyCode, keySym, NULL, block);
type = KeyPress;
}
/* If key is already up, ignore */
if (type == KeyRelease && !kbdUSBKeyDown(priv, keyCode))
return;
}
switching = 0;
if (checkspecial && type == KeyPress)
switching = checkspecial(pDev, keySym);
if (!switching) {
if (enqueue)
enqueue(pDev, type, keyCode, keySym, NULL, block);
kbdUSBKeyState(priv, type, keyCode); /* Update our state bitmap */
}
}
/** Read an event from the \a pDev device. If the event is a motion
* event, enqueue it with the \a motion function. Otherwise, check for
* special keys with the \a checkspecial function and enqueue the event
* with the \a enqueue function. The \a block type is passed to the
* functions so that they may block the input thread as appropriate to the
* caller of this function. */
void
kbdUSBRead(DevicePtr pDev,
MOTIONPROC motion,
ENQUEUEPROC enqueue, CHECKPROC checkspecial, BLOCK block)
{
GETPRIV;
struct input_event raw;
while (read(priv->fd, &raw, sizeof(raw)) > 0) {
#if USB_KEYBOARD_DEBUG
LOG3("KBD: type = %d, code = 0x%02x, value = %d\n",
raw.type, raw.code, raw.value);
#endif
kbdUSBConvert(pDev, raw.code, raw.value, enqueue, checkspecial, block);
}
}
/** Turn \a pDev on (i.e., take input from \a pDev). */
int
kbdUSBOn(DevicePtr pDev)
{
GETPRIV;
if (priv->fd < 0)
kbdUSBInit(pDev);
return priv->fd;
}
static void
kbdUSBGetMap(DevicePtr pDev, KeySymsPtr pKeySyms, CARD8 *pModMap)
{
KeySym *k, *mapCopy;
int i;
mapCopy = malloc(sizeof(map));
memcpy(mapCopy, map, sizeof(map));
/* compute the modifier map */
for (i = 0; i < MAP_LENGTH; i++)
pModMap[i] = NoSymbol; /* make sure it is restored */
for (k = mapCopy, i = MIN_KEYCODE;
i < NUM_KEYCODES + MIN_KEYCODE; i++, k += 4) {
switch (*k) {
case XK_Shift_L:
case XK_Shift_R:
pModMap[i] = ShiftMask;
break;
case XK_Control_L:
case XK_Control_R:
pModMap[i] = ControlMask;
break;
case XK_Caps_Lock:
pModMap[i] = LockMask;
break;
case XK_Alt_L:
case XK_Alt_R:
pModMap[i] = AltMask;
break;
case XK_Num_Lock:
pModMap[i] = NumLockMask;
break;
case XK_Scroll_Lock:
pModMap[i] = ScrollLockMask;
break;
case XK_Kana_Lock:
case XK_Kana_Shift:
pModMap[i] = KanaMask;
break;
case XK_Mode_switch:
pModMap[i] = AltLangMask;
break;
}
}
pKeySyms->map = mapCopy; /* Must be XFree'able */
pKeySyms->mapWidth = GLYPHS_PER_KEY;
pKeySyms->minKeyCode = MIN_KEYCODE;
pKeySyms->maxKeyCode = MAX_KEYCODE;
}
/** Fill the \a info structure with information needed to initialize \a
* pDev. */
void
kbdUSBGetInfo(DevicePtr pDev, DMXLocalInitInfoPtr info)
{
info->keyboard = 1;
info->keyClass = 1;
kbdUSBGetMap(pDev, &info->keySyms, info->modMap);
info->focusClass = 1;
info->kbdFeedbackClass = 1;
info->names.keycodes = strdup("powerpcps2");
info->force = 1;
}
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