| /* |
| * 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 */ |
| |
