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/*
* Copyright (c) 2011 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* 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;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 COPYRIGHT
* OWNER OR CONTRIBUTORS 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.
*
* Authors: Ali Saidi
*/
#include "dev/ps2.hh"
#include <list>
#include "base/logging.hh"
#include "x11keysym/keysym.h"
namespace Ps2 {
/** Table to convert simple key symbols (0x00XX) into ps2 bytes. Lower byte
* is the scan code to send and upper byte is if a modifier is required to
* generate it. The table generates us keyboard codes, (e.g. the guest is
* supposed to recognize the keyboard as en_US). A new table would be required
* for another locale.
*/
static const uint16_t keySymToPs2Byte[128] = {
// 0 / 8 1 / 9 2 / A 3 / B 4 / C 5 / D 6 / E 7 / F
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, // 0x00-0x07
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, // 0x08-0x0f
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, // 0x10-0x17
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, // 0x18-0x1f
0x0029, 0x0116, 0x0152, 0x0126, 0x0125, 0x012e, 0x013d, 0x0052, // 0x20-0x27
0x0146, 0x0145, 0x013e, 0x0155, 0x0041, 0x004e, 0x0049, 0x004a, // 0x28-0x2f
0x0045, 0x0016, 0x001e, 0x0026, 0x0025, 0x002e, 0x0036, 0x003d, // 0x30-0x37
0x003e, 0x0046, 0x014c, 0x004c, 0x0141, 0x0055, 0x0149, 0x014a, // 0x38-0x3f
0x011e, 0x011c, 0x0132, 0x0121, 0x0123, 0x0124, 0x012b, 0x0134, // 0x40-0x47
0x0133, 0x0143, 0x013b, 0x0142, 0x014b, 0x013a, 0x0131, 0x0144, // 0x48-0x4f
0x014d, 0x0115, 0x012d, 0x011b, 0x012c, 0x013c, 0x012a, 0x011d, // 0x50-0x57
0x0122, 0x0135, 0x011a, 0x0054, 0x005d, 0x005b, 0x0136, 0x014e, // 0x58-0x5f
0x000e, 0x001c, 0x0032, 0x0021, 0x0023, 0x0024, 0x002b, 0x0034, // 0x60-0x67
0x0033, 0x0043, 0x003b, 0x0042, 0x004b, 0x003a, 0x0031, 0x0044, // 0x68-0x6f
0x004d, 0x0015, 0x002d, 0x001b, 0x002c, 0x003c, 0x002a, 0x001d, // 0x70-0x77
0x0022, 0x0035, 0x001a, 0x0154, 0x015d, 0x015b, 0x010e, 0x0000 // 0x78-0x7f
};
const uint8_t ShiftKey = 0x12;
const uint8_t BreakKey = 0xf0;
const uint8_t ExtendedKey = 0xe0;
const uint32_t UpperKeys = 0xff00;
void
keySymToPs2(uint32_t key, bool down, bool &cur_shift,
std::list<uint8_t> &keys)
{
if (key <= XK_asciitilde) {
uint16_t tmp = keySymToPs2Byte[key];
uint8_t code = tmp & 0xff;
bool shift = tmp >> 8;
if (down) {
if (!cur_shift && shift) {
keys.push_back(ShiftKey);
cur_shift = true;
}
keys.push_back(code);
} else {
if (cur_shift && !shift) {
keys.push_back(BreakKey);
keys.push_back(ShiftKey);
cur_shift = false;
}
keys.push_back(BreakKey);
keys.push_back(code);
}
} else {
if ((key & UpperKeys) == UpperKeys) {
bool extended = false;
switch (key) {
case XK_BackSpace:
keys.push_back(0x66);
break;
case XK_Tab:
keys.push_back(0x0d);
break;
case XK_Return:
keys.push_back(0x5a);
break;
case XK_Escape:
keys.push_back(0x76);
break;
case XK_Delete:
extended = true;
keys.push_back(0x71);
break;
case XK_Home:
extended = true;
keys.push_back(0x6c);
break;
case XK_Left:
extended = true;
keys.push_back(0x6b);
break;
case XK_Right:
extended = true;
keys.push_back(0x74);
break;
case XK_Down:
extended = true;
keys.push_back(0x72);
break;
case XK_Up:
extended = true;
keys.push_back(0x75);
break;
case XK_Page_Up:
extended = true;
keys.push_back(0x7d);
break;
case XK_Page_Down:
extended = true;
keys.push_back(0x7a);
break;
case XK_End:
extended = true;
keys.push_back(0x69);
break;
case XK_Shift_L:
keys.push_back(0x12);
if (down)
cur_shift = true;
else
cur_shift = false;
break;
case XK_Shift_R:
keys.push_back(0x59);
if (down)
cur_shift = true;
else
cur_shift = false;
break;
case XK_Control_L:
keys.push_back(0x14);
break;
case XK_Control_R:
extended = true;
keys.push_back(0x14);
break;
case XK_Alt_L:
keys.push_back(0x11);
break;
case XK_Alt_R:
extended = true;
keys.push_back(0x11);
break;
default:
warn("Unknown extended key %#x\n", key);
return;
}
if (extended) {
if (down) {
keys.push_front(ExtendedKey);
} else {
keys.push_front(BreakKey);
keys.push_front(ExtendedKey);
}
} else {
if (!down)
keys.push_front(BreakKey);
}
} // upper keys
} // extended keys
return;
}
} /* namespace Ps2 */
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