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