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/* |
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* Copyright (C) 2003-2006 Anders Gavare. All rights reserved. |
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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 met: |
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* |
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* 1. 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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* 2. 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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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: dev_pckbc.c,v 1.65 2006/03/04 12:38:48 debug Exp $ |
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* |
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* Standard 8042 PC keyboard controller (and a 8242WB PS2 keyboard/mouse |
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* controller), including the 8048 keyboard chip. |
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* |
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* |
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* TODO: Finish the rewrite for 8242. |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "console.h" |
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#include "cpu.h" |
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#include "devices.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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|
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#include "kbdreg.h" |
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|
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|
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/* #define PCKBC_DEBUG */ |
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/* #define debug fatal */ |
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|
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|
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#define MAX_8042_QUEUELEN 256 |
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|
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#define PC_DATA 0 |
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#define PC_CMD 0 |
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#define PC_STATUS 1 |
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|
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#define PS2_TXBUF 0 |
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#define PS2_RXBUF 1 |
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#define PS2_CONTROL 2 |
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#define PS2_STATUS 3 |
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|
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#define PS2 100 |
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|
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#define PCKBC_TICKSHIFT 15 |
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|
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struct pckbc_data { |
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int console_handle; |
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int in_use; |
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|
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int reg[DEV_PCKBC_LENGTH]; |
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int keyboard_irqnr; |
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int mouse_irqnr; |
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int currently_asserted[2]; |
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int type; |
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int pc_style_flag; |
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|
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/* TODO: one of these for each port? */ |
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int clocksignal; |
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int rx_int_enable; |
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int tx_int_enable; |
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|
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int keyscanning_enabled; |
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int translation_table; |
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int state; |
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int cmdbyte; |
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int output_byte; |
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int last_scancode; |
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|
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unsigned key_queue[2][MAX_8042_QUEUELEN]; |
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int head[2], tail[2]; |
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}; |
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|
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#define STATE_NORMAL 0 |
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#define STATE_LDCMDBYTE 1 |
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#define STATE_RDCMDBYTE 2 |
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#define STATE_WAITING_FOR_TRANSLTABLE 3 |
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#define STATE_WAITING_FOR_F3 4 |
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#define STATE_WAITING_FOR_FC 5 |
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#define STATE_WAITING_FOR_AUX 6 |
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#define STATE_WAITING_FOR_AUX_OUT 7 |
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#define STATE_LDOUTPUT 8 |
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#define STATE_RDOUTPUT 9 |
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|
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|
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/* |
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* pckbc_add_code(): |
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* |
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* Adds a byte to the data queue. |
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*/ |
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void pckbc_add_code(struct pckbc_data *d, int code, int port) |
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{ |
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/* Add at the head, read at the tail: */ |
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d->head[port] = (d->head[port]+1) % MAX_8042_QUEUELEN; |
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if (d->head[port] == d->tail[port]) |
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fatal("[ pckbc: queue overrun, port %i! ]\n", port); |
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|
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d->key_queue[port][d->head[port]] = code; |
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} |
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|
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|
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/* |
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* pckbc_get_code(): |
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* |
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* Reads a byte from a data queue. |
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*/ |
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int pckbc_get_code(struct pckbc_data *d, int port) |
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{ |
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if (d->head[port] == d->tail[port]) |
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fatal("[ pckbc: queue empty, port %i! ]\n", port); |
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else |
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d->tail[port] = (d->tail[port]+1) % MAX_8042_QUEUELEN; |
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return d->key_queue[port][d->tail[port]]; |
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} |
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|
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|
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/* |
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* ascii_to_scancodes_type3(): |
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* |
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* Conversion from ASCII codes to default (US) keyboard scancodes. |
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* (See http://www.computer-engineering.org/ps2keyboard/scancodes3.html) |
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*/ |
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static void ascii_to_pc_scancodes_type3(int a, struct pckbc_data *d) |
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{ |
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int old_head; |
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int p = 0; /* port */ |
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int shift = 0, ctrl = 0; |
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|
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if (a >= 'A' && a <= 'Z') { a += 32; shift = 1; } |
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if ((a >= 1 && a <= 26) && (a!='\n' && a!='\t' && a!='\b' && a!='\r')) |
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{ a += 96; ctrl = 1; } |
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if (a=='!') { a = '1'; shift = 1; } |
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if (a=='@') { a = '2'; shift = 1; } |
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if (a=='#') { a = '3'; shift = 1; } |
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if (a=='$') { a = '4'; shift = 1; } |
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if (a=='%') { a = '5'; shift = 1; } |
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if (a=='^') { a = '6'; shift = 1; } |
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if (a=='&') { a = '7'; shift = 1; } |
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if (a=='*') { a = '8'; shift = 1; } |
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if (a=='(') { a = '9'; shift = 1; } |
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if (a==')') { a = '0'; shift = 1; } |
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if (a=='_') { a = '-'; shift = 1; } |
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if (a=='+') { a = '='; shift = 1; } |
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if (a=='{') { a = '['; shift = 1; } |
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if (a=='}') { a = ']'; shift = 1; } |
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if (a==':') { a = ';'; shift = 1; } |
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if (a=='"') { a = '\''; shift = 1; } |
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if (a=='|') { a = '\\'; shift = 1; } |
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if (a=='<') { a = ','; shift = 1; } |
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if (a=='>') { a = '.'; shift = 1; } |
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if (a=='?') { a = '/'; shift = 1; } |
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|
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if (shift) |
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pckbc_add_code(d, 0x12, p); |
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if (ctrl) |
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pckbc_add_code(d, 0x11, p); |
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|
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/* |
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* Note: The ugly hack used to add release codes for all of these |
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* keys is as follows: we remember how much of the kbd buf that |
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* is in use here, before we add any scancode. After we've added |
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* one or more scancodes (ie an optional shift + another key) |
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* then we add 0xf0 + the last scancode _if_ the kbd buf was altered. |
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*/ |
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|
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old_head = d->head[p]; |
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|
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if (a==27) pckbc_add_code(d, 0x08, p); |
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|
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if (a=='1') pckbc_add_code(d, 0x16, p); |
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if (a=='2') pckbc_add_code(d, 0x1e, p); |
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if (a=='3') pckbc_add_code(d, 0x26, p); |
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if (a=='4') pckbc_add_code(d, 0x25, p); |
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if (a=='5') pckbc_add_code(d, 0x2e, p); |
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if (a=='6') pckbc_add_code(d, 0x36, p); |
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if (a=='7') pckbc_add_code(d, 0x3d, p); |
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if (a=='8') pckbc_add_code(d, 0x3e, p); |
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if (a=='9') pckbc_add_code(d, 0x46, p); |
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if (a=='0') pckbc_add_code(d, 0x45, p); |
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if (a=='-') pckbc_add_code(d, 0x4e, p); |
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if (a=='=') pckbc_add_code(d, 0x55, p); |
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|
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if (a=='\b') pckbc_add_code(d, 0x29, p); |
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|
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if (a=='\t') pckbc_add_code(d, 0x0d, p); |
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if (a=='q') pckbc_add_code(d, 0x15, p); |
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if (a=='w') pckbc_add_code(d, 0x1d, p); |
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if (a=='e') pckbc_add_code(d, 0x24, p); |
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if (a=='r') pckbc_add_code(d, 0x2d, p); |
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if (a=='t') pckbc_add_code(d, 0x2c, p); |
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if (a=='y') pckbc_add_code(d, 0x35, p); |
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if (a=='u') pckbc_add_code(d, 0x3c, p); |
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if (a=='i') pckbc_add_code(d, 0x43, p); |
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if (a=='o') pckbc_add_code(d, 0x44, p); |
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if (a=='p') pckbc_add_code(d, 0x4d, p); |
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|
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if (a=='[') pckbc_add_code(d, 0x54, p); |
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if (a==']') pckbc_add_code(d, 0x5b, p); |
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|
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if (a=='\n' || a=='\r') pckbc_add_code(d, 0x5a, p); |
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|
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if (a=='a') pckbc_add_code(d, 0x1c, p); |
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if (a=='s') pckbc_add_code(d, 0x1b, p); |
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if (a=='d') pckbc_add_code(d, 0x23, p); |
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if (a=='f') pckbc_add_code(d, 0x2b, p); |
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if (a=='g') pckbc_add_code(d, 0x34, p); |
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if (a=='h') pckbc_add_code(d, 0x33, p); |
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if (a=='j') pckbc_add_code(d, 0x3b, p); |
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if (a=='k') pckbc_add_code(d, 0x42, p); |
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if (a=='l') pckbc_add_code(d, 0x4b, p); |
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|
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if (a==';') pckbc_add_code(d, 0x4c, p); |
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if (a=='\'') pckbc_add_code(d, 0x52, p); |
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/* if (a=='~') pckbc_add_code(d, 0x29, p); ? */ |
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if (a=='\\') pckbc_add_code(d, 0x5c, p); |
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|
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if (a=='z') pckbc_add_code(d, 0x1a, p); |
| 241 |
if (a=='x') pckbc_add_code(d, 0x22, p); |
| 242 |
if (a=='c') pckbc_add_code(d, 0x21, p); |
| 243 |
if (a=='v') pckbc_add_code(d, 0x2a, p); |
| 244 |
if (a=='b') pckbc_add_code(d, 0x32, p); |
| 245 |
if (a=='n') pckbc_add_code(d, 0x31, p); |
| 246 |
if (a=='m') pckbc_add_code(d, 0x3a, p); |
| 247 |
|
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if (a==',') pckbc_add_code(d, 0x41, p); |
| 249 |
if (a=='.') pckbc_add_code(d, 0x49, p); |
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if (a=='/') pckbc_add_code(d, 0x4a, p); |
| 251 |
|
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if (a==' ') pckbc_add_code(d, 0x29, p); |
| 253 |
|
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/* Add release code, if a key was pressed: */ |
| 255 |
if (d->head[p] != old_head) { |
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int code = d->key_queue[p][d->head[p]]; |
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pckbc_add_code(d, 0xf0, p); |
| 258 |
pckbc_add_code(d, code, p); |
| 259 |
} |
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|
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/* Release shift and ctrl: */ |
| 262 |
if (shift) { |
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pckbc_add_code(d, 0xf0, p); |
| 264 |
pckbc_add_code(d, 0x12, p); |
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} |
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if (ctrl) { |
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pckbc_add_code(d, 0xf0, p); |
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pckbc_add_code(d, 0x11, p); |
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} |
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} |
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|
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|
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/* |
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* ascii_to_scancodes_type2(): |
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* |
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* Conversion from ASCII codes to default (US) keyboard scancodes. |
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* (See http://www.win.tue.nl/~aeb/linux/kbd/scancodes-1.html) |
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* |
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* NOTE/TODO: This seems to be type 2, not type 1. |
| 280 |
*/ |
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static void ascii_to_pc_scancodes_type2(int a, struct pckbc_data *d) |
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{ |
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int old_head; |
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int p = 0; /* port */ |
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int shift = 0, ctrl = 0; |
| 286 |
|
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if (d->translation_table == 3) { |
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ascii_to_pc_scancodes_type3(a, d); |
| 289 |
return; |
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} |
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|
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if (d->translation_table != 2) { |
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fatal("[ ascii_to_pc_scancodes: unimplemented type! ]\n"); |
| 294 |
return; |
| 295 |
} |
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|
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if (a >= 'A' && a <= 'Z') { a += 32; shift = 1; } |
| 298 |
if ((a >= 1 && a <= 26) && (a!='\n' && a!='\t' && a!='\b' && a!='\r')) |
| 299 |
{ a += 96; ctrl = 1; } |
| 300 |
|
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if (a=='!') { a = '1'; shift = 1; } |
| 302 |
if (a=='@') { a = '2'; shift = 1; } |
| 303 |
if (a=='#') { a = '3'; shift = 1; } |
| 304 |
if (a=='$') { a = '4'; shift = 1; } |
| 305 |
if (a=='%') { a = '5'; shift = 1; } |
| 306 |
if (a=='^') { a = '6'; shift = 1; } |
| 307 |
if (a=='&') { a = '7'; shift = 1; } |
| 308 |
if (a=='*') { a = '8'; shift = 1; } |
| 309 |
if (a=='(') { a = '9'; shift = 1; } |
| 310 |
if (a==')') { a = '0'; shift = 1; } |
| 311 |
if (a=='_') { a = '-'; shift = 1; } |
| 312 |
if (a=='+') { a = '='; shift = 1; } |
| 313 |
if (a=='{') { a = '['; shift = 1; } |
| 314 |
if (a=='}') { a = ']'; shift = 1; } |
| 315 |
if (a==':') { a = ';'; shift = 1; } |
| 316 |
if (a=='"') { a = '\''; shift = 1; } |
| 317 |
if (a=='|') { a = '\\'; shift = 1; } |
| 318 |
if (a=='<') { a = ','; shift = 1; } |
| 319 |
if (a=='>') { a = '.'; shift = 1; } |
| 320 |
if (a=='?') { a = '/'; shift = 1; } |
| 321 |
if (a=='~') { a = '`'; shift = 1; } |
| 322 |
|
| 323 |
if (shift) |
| 324 |
pckbc_add_code(d, 0x2a, p); |
| 325 |
else |
| 326 |
pckbc_add_code(d, 0x2a + 0x80, p); |
| 327 |
|
| 328 |
if (ctrl) |
| 329 |
pckbc_add_code(d, 0x1d, p); |
| 330 |
|
| 331 |
/* |
| 332 |
* Note: The ugly hack used to add release codes for all of these |
| 333 |
* keys is as follows: we remember how much of the kbd buf that |
| 334 |
* is in use here, before we add any scancode. After we've added |
| 335 |
* one or more scancodes (ie an optional shift + another key) |
| 336 |
* then we duplicate the last scancode | 0x80 _if_ the kbd buf |
| 337 |
* was altered. |
| 338 |
*/ |
| 339 |
|
| 340 |
old_head = d->head[p]; |
| 341 |
|
| 342 |
if (a==27) pckbc_add_code(d, 0x01, p); |
| 343 |
|
| 344 |
if (a=='1') pckbc_add_code(d, 0x02, p); |
| 345 |
if (a=='2') pckbc_add_code(d, 0x03, p); |
| 346 |
if (a=='3') pckbc_add_code(d, 0x04, p); |
| 347 |
if (a=='4') pckbc_add_code(d, 0x05, p); |
| 348 |
if (a=='5') pckbc_add_code(d, 0x06, p); |
| 349 |
if (a=='6') pckbc_add_code(d, 0x07, p); |
| 350 |
if (a=='7') pckbc_add_code(d, 0x08, p); |
| 351 |
if (a=='8') pckbc_add_code(d, 0x09, p); |
| 352 |
if (a=='9') pckbc_add_code(d, 0x0a, p); |
| 353 |
if (a=='0') pckbc_add_code(d, 0x0b, p); |
| 354 |
if (a=='-') pckbc_add_code(d, 0x0c, p); |
| 355 |
if (a=='=') pckbc_add_code(d, 0x0d, p); |
| 356 |
|
| 357 |
if (a=='!') { pckbc_add_code(d, 0x2a, p); |
| 358 |
pckbc_add_code(d, 0x02, p); } |
| 359 |
if (a=='@') { pckbc_add_code(d, 0x2a, p); |
| 360 |
pckbc_add_code(d, 0x03, p); } |
| 361 |
if (a=='#') { pckbc_add_code(d, 0x2a, p); |
| 362 |
pckbc_add_code(d, 0x04, p); } |
| 363 |
if (a=='$') { pckbc_add_code(d, 0x2a, p); |
| 364 |
pckbc_add_code(d, 0x05, p); } |
| 365 |
if (a=='%') { pckbc_add_code(d, 0x2a, p); |
| 366 |
pckbc_add_code(d, 0x06, p); } |
| 367 |
if (a=='^') { pckbc_add_code(d, 0x2a, p); |
| 368 |
pckbc_add_code(d, 0x07, p); } |
| 369 |
if (a=='&') { pckbc_add_code(d, 0x2a, p); |
| 370 |
pckbc_add_code(d, 0x08, p); } |
| 371 |
if (a=='*') { pckbc_add_code(d, 0x2a, p); |
| 372 |
pckbc_add_code(d, 0x09, p); } |
| 373 |
if (a=='(') { pckbc_add_code(d, 0x2a, p); |
| 374 |
pckbc_add_code(d, 0x0a, p); } |
| 375 |
|
| 376 |
if (a=='\b') pckbc_add_code(d, 0x0e, p); |
| 377 |
|
| 378 |
if (a=='\t') pckbc_add_code(d, 0x0f, p); |
| 379 |
if (a=='q') pckbc_add_code(d, 0x10, p); |
| 380 |
if (a=='w') pckbc_add_code(d, 0x11, p); |
| 381 |
if (a=='e') pckbc_add_code(d, 0x12, p); |
| 382 |
if (a=='r') pckbc_add_code(d, 0x13, p); |
| 383 |
if (a=='t') pckbc_add_code(d, 0x14, p); |
| 384 |
if (a=='y') pckbc_add_code(d, 0x15, p); |
| 385 |
if (a=='u') pckbc_add_code(d, 0x16, p); |
| 386 |
if (a=='i') pckbc_add_code(d, 0x17, p); |
| 387 |
if (a=='o') pckbc_add_code(d, 0x18, p); |
| 388 |
if (a=='p') pckbc_add_code(d, 0x19, p); |
| 389 |
|
| 390 |
if (a=='[') pckbc_add_code(d, 0x1a, p); |
| 391 |
if (a==']') pckbc_add_code(d, 0x1b, p); |
| 392 |
|
| 393 |
if (a=='\n' || a=='\r') pckbc_add_code(d, 0x1c, p); |
| 394 |
|
| 395 |
if (a=='a') pckbc_add_code(d, 0x1e, p); |
| 396 |
if (a=='s') pckbc_add_code(d, 0x1f, p); |
| 397 |
if (a=='d') pckbc_add_code(d, 0x20, p); |
| 398 |
if (a=='f') pckbc_add_code(d, 0x21, p); |
| 399 |
if (a=='g') pckbc_add_code(d, 0x22, p); |
| 400 |
if (a=='h') pckbc_add_code(d, 0x23, p); |
| 401 |
if (a=='j') pckbc_add_code(d, 0x24, p); |
| 402 |
if (a=='k') pckbc_add_code(d, 0x25, p); |
| 403 |
if (a=='l') pckbc_add_code(d, 0x26, p); |
| 404 |
|
| 405 |
if (a==';') pckbc_add_code(d, 0x27, p); |
| 406 |
if (a=='\'') pckbc_add_code(d, 0x28, p); |
| 407 |
if (a=='`') pckbc_add_code(d, 0x29, p); |
| 408 |
if (a=='\\') pckbc_add_code(d, 0x2b, p); |
| 409 |
|
| 410 |
if (a=='z') pckbc_add_code(d, 0x2c, p); |
| 411 |
if (a=='x') pckbc_add_code(d, 0x2d, p); |
| 412 |
if (a=='c') pckbc_add_code(d, 0x2e, p); |
| 413 |
if (a=='v') pckbc_add_code(d, 0x2f, p); |
| 414 |
if (a=='b') pckbc_add_code(d, 0x30, p); |
| 415 |
if (a=='n') pckbc_add_code(d, 0x31, p); |
| 416 |
if (a=='m') pckbc_add_code(d, 0x32, p); |
| 417 |
|
| 418 |
if (a==',') pckbc_add_code(d, 0x33, p); |
| 419 |
if (a=='.') pckbc_add_code(d, 0x34, p); |
| 420 |
if (a=='/') pckbc_add_code(d, 0x35, p); |
| 421 |
|
| 422 |
if (a==' ') pckbc_add_code(d, 0x39, p); |
| 423 |
|
| 424 |
/* Add release code, if a key was pressed: */ |
| 425 |
if (d->head[p] != old_head) { |
| 426 |
int code = d->key_queue[p][d->head[p]] | 0x80; |
| 427 |
pckbc_add_code(d, code, p); |
| 428 |
} |
| 429 |
|
| 430 |
/* Release ctrl: */ |
| 431 |
if (ctrl) |
| 432 |
pckbc_add_code(d, 0x1d + 0x80, p); |
| 433 |
} |
| 434 |
|
| 435 |
|
| 436 |
/* |
| 437 |
* dev_pckbc_tick(): |
| 438 |
*/ |
| 439 |
void dev_pckbc_tick(struct cpu *cpu, void *extra) |
| 440 |
{ |
| 441 |
struct pckbc_data *d = extra; |
| 442 |
int port_nr, ch, ints_enabled; |
| 443 |
|
| 444 |
if (d->in_use && console_charavail(d->console_handle)) { |
| 445 |
ch = console_readchar(d->console_handle); |
| 446 |
if (ch >= 0) |
| 447 |
ascii_to_pc_scancodes_type2(ch, d); |
| 448 |
} |
| 449 |
|
| 450 |
ints_enabled = d->rx_int_enable; |
| 451 |
|
| 452 |
/* TODO: mouse movements? */ |
| 453 |
|
| 454 |
if (d->cmdbyte & KC8_KDISABLE) |
| 455 |
ints_enabled = 0; |
| 456 |
|
| 457 |
for (port_nr=0; port_nr<2; port_nr++) { |
| 458 |
/* Cause receive interrupt, if there's something in the |
| 459 |
receive buffer: (Otherwise deassert the interrupt.) */ |
| 460 |
if (d->head[port_nr] != d->tail[port_nr] && ints_enabled) { |
| 461 |
debug("[ pckbc: interrupt port %i ]\n", port_nr); |
| 462 |
cpu_interrupt(cpu, port_nr==0? d->keyboard_irqnr |
| 463 |
: d->mouse_irqnr); |
| 464 |
d->currently_asserted[port_nr] = 1; |
| 465 |
} else { |
| 466 |
if (d->currently_asserted[port_nr]) |
| 467 |
cpu_interrupt_ack(cpu, port_nr==0? |
| 468 |
d->keyboard_irqnr : d->mouse_irqnr); |
| 469 |
d->currently_asserted[port_nr] = 0; |
| 470 |
} |
| 471 |
} |
| 472 |
} |
| 473 |
|
| 474 |
|
| 475 |
/* |
| 476 |
* dev_pckbc_command(): |
| 477 |
* |
| 478 |
* Handle commands to the 8048 in the emulated keyboard. |
| 479 |
*/ |
| 480 |
static void dev_pckbc_command(struct pckbc_data *d, int port_nr) |
| 481 |
{ |
| 482 |
int cmd = d->reg[PC_CMD]; |
| 483 |
|
| 484 |
if (d->type == PCKBC_8242) |
| 485 |
cmd = d->reg[PS2_TXBUF]; |
| 486 |
|
| 487 |
if (d->state == STATE_WAITING_FOR_TRANSLTABLE) { |
| 488 |
debug("[ pckbc: (port %i) switching to translation table " |
| 489 |
"0x%02x ]\n", port_nr, cmd); |
| 490 |
switch (cmd) { |
| 491 |
case 2: |
| 492 |
case 3: d->translation_table = cmd; |
| 493 |
break; |
| 494 |
default:fatal("[ pckbc: (port %i) translation table " |
| 495 |
"0x%02x is NOT YET IMPLEMENTED ]\n", |
| 496 |
port_nr, cmd); |
| 497 |
} |
| 498 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 499 |
d->state = STATE_NORMAL; |
| 500 |
return; |
| 501 |
} |
| 502 |
|
| 503 |
if (d->state == STATE_WAITING_FOR_F3) { |
| 504 |
debug("[ pckbc: (port %i) received '0xf3' data: " |
| 505 |
"0x%02x ]\n", port_nr, cmd); |
| 506 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 507 |
d->state = STATE_NORMAL; |
| 508 |
return; |
| 509 |
} |
| 510 |
|
| 511 |
if (d->state == STATE_WAITING_FOR_FC) { |
| 512 |
debug("[ pckbc: (port %i) received '0xfc' data: " |
| 513 |
"0x%02x ]\n", port_nr, cmd); |
| 514 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 515 |
d->state = STATE_NORMAL; |
| 516 |
return; |
| 517 |
} |
| 518 |
|
| 519 |
if (d->state == STATE_WAITING_FOR_AUX) { |
| 520 |
debug("[ pckbc: (port %i) received aux data: " |
| 521 |
"0x%02x ]\n", port_nr, cmd); |
| 522 |
/* Echo back. */ |
| 523 |
pckbc_add_code(d, cmd, port_nr); |
| 524 |
d->state = STATE_NORMAL; |
| 525 |
return; |
| 526 |
} |
| 527 |
|
| 528 |
if (d->state == STATE_WAITING_FOR_AUX_OUT) { |
| 529 |
debug("[ pckbc: (port %i) received aux out data: " |
| 530 |
"0x%02x ]\n", port_nr, cmd); |
| 531 |
/* Echo back. */ |
| 532 |
pckbc_add_code(d, cmd, port_nr); |
| 533 |
d->state = STATE_NORMAL; |
| 534 |
return; |
| 535 |
} |
| 536 |
|
| 537 |
switch (cmd) { |
| 538 |
case 0x00: |
| 539 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 540 |
break; |
| 541 |
case KBC_MODEIND: /* Set LEDs */ |
| 542 |
/* Just ACK, no LEDs are actually set. */ |
| 543 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 544 |
break; |
| 545 |
case KBC_SETTABLE: |
| 546 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 547 |
d->state = STATE_WAITING_FOR_TRANSLTABLE; |
| 548 |
break; |
| 549 |
case KBC_ENABLE: |
| 550 |
d->keyscanning_enabled = 1; |
| 551 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 552 |
break; |
| 553 |
case KBC_DISABLE: |
| 554 |
d->keyscanning_enabled = 0; |
| 555 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 556 |
break; |
| 557 |
case KBC_SETDEFAULT: |
| 558 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 559 |
break; |
| 560 |
case 0xf3: |
| 561 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 562 |
d->state = STATE_WAITING_FOR_F3; |
| 563 |
break; |
| 564 |
case 0xfa: /* Just ack? */ |
| 565 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 566 |
break; |
| 567 |
case 0xfc: |
| 568 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 569 |
d->state = STATE_WAITING_FOR_FC; |
| 570 |
break; |
| 571 |
case KBC_RESET: |
| 572 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 573 |
pckbc_add_code(d, KBR_RSTDONE, port_nr); |
| 574 |
break; |
| 575 |
default: |
| 576 |
fatal("[ pckbc: (port %i) UNIMPLEMENTED 8048 command" |
| 577 |
" 0x%02x ]\n", port_nr, cmd); |
| 578 |
} |
| 579 |
} |
| 580 |
|
| 581 |
|
| 582 |
/* |
| 583 |
* dev_pckbc_access(): |
| 584 |
*/ |
| 585 |
DEVICE_ACCESS(pckbc) |
| 586 |
{ |
| 587 |
uint64_t idata = 0, odata = 0; |
| 588 |
int port_nr = 0; |
| 589 |
size_t i; |
| 590 |
struct pckbc_data *d = extra; |
| 591 |
|
| 592 |
if (writeflag == MEM_WRITE) |
| 593 |
idata = memory_readmax64(cpu, data, len); |
| 594 |
|
| 595 |
#ifdef PCKBC_DEBUG |
| 596 |
if (writeflag == MEM_WRITE) |
| 597 |
fatal("[ pckbc: write to addr 0x%x: 0x%x ]\n", |
| 598 |
(int)relative_addr, (int)idata); |
| 599 |
else |
| 600 |
fatal("[ pckbc: read from addr 0x%x ]\n", |
| 601 |
(int)relative_addr); |
| 602 |
#endif |
| 603 |
|
| 604 |
/* For JAZZ-based machines: */ |
| 605 |
if (relative_addr >= 0x60) { |
| 606 |
relative_addr -= 0x60; |
| 607 |
if (relative_addr != 0) |
| 608 |
relative_addr = 1; |
| 609 |
} else if (d->type == PCKBC_8242) { |
| 610 |
/* 8242 PS2-style: */ |
| 611 |
/* when using 8-byte alignment... */ |
| 612 |
relative_addr /= sizeof(uint64_t); |
| 613 |
/* port_nr = 0 for keyboard, 1 for mouse */ |
| 614 |
port_nr = (relative_addr >> 2); |
| 615 |
relative_addr &= 3; |
| 616 |
relative_addr += PS2; |
| 617 |
} else if (d->pc_style_flag) { |
| 618 |
/* PC-style: */ |
| 619 |
if (relative_addr != 0 && relative_addr != 4) { |
| 620 |
/* TODO (port 0x61) */ |
| 621 |
odata = 0x21; |
| 622 |
{ |
| 623 |
static int x = 0; |
| 624 |
x++; |
| 625 |
if (x&1) |
| 626 |
odata ^= 0x10; |
| 627 |
} |
| 628 |
if (writeflag == MEM_READ) |
| 629 |
memory_writemax64(cpu, data, len, odata); |
| 630 |
return 0; |
| 631 |
} |
| 632 |
if (relative_addr != 0) |
| 633 |
relative_addr = 1; |
| 634 |
} else { |
| 635 |
/* Others... Non-Jazz ARC-based machines etc. */ |
| 636 |
if (relative_addr != 0) |
| 637 |
relative_addr = 1; |
| 638 |
} |
| 639 |
|
| 640 |
switch (relative_addr) { |
| 641 |
|
| 642 |
/* |
| 643 |
* 8042 (PC): |
| 644 |
*/ |
| 645 |
|
| 646 |
case 0: /* data */ |
| 647 |
if (writeflag==MEM_READ) { |
| 648 |
switch (d->state) { |
| 649 |
case STATE_RDCMDBYTE: |
| 650 |
odata = d->cmdbyte; |
| 651 |
d->state = STATE_NORMAL; |
| 652 |
break; |
| 653 |
case STATE_RDOUTPUT: |
| 654 |
odata = d->output_byte; |
| 655 |
d->state = STATE_NORMAL; |
| 656 |
break; |
| 657 |
default:if (d->head[0] != d->tail[0]) { |
| 658 |
odata = pckbc_get_code(d, 0); |
| 659 |
d->last_scancode = odata; |
| 660 |
} else { |
| 661 |
odata = d->last_scancode; |
| 662 |
d->last_scancode |= 0x80; |
| 663 |
} |
| 664 |
} |
| 665 |
/* debug("[ pckbc: read from DATA: 0x%02x ]\n", |
| 666 |
(int)odata); */ |
| 667 |
} else { |
| 668 |
debug("[ pckbc: write to DATA:"); |
| 669 |
for (i=0; i<len; i++) |
| 670 |
debug(" %02x", data[i]); |
| 671 |
debug(" ]\n"); |
| 672 |
|
| 673 |
switch (d->state) { |
| 674 |
case STATE_LDCMDBYTE: |
| 675 |
d->cmdbyte = idata; |
| 676 |
d->rx_int_enable = d->cmdbyte & |
| 677 |
(KC8_KENABLE | KC8_MENABLE) ? 1 : 0; |
| 678 |
d->state = STATE_NORMAL; |
| 679 |
break; |
| 680 |
case STATE_LDOUTPUT: |
| 681 |
d->output_byte = idata; |
| 682 |
d->state = STATE_NORMAL; |
| 683 |
break; |
| 684 |
default:d->reg[relative_addr] = idata; |
| 685 |
dev_pckbc_command(d, port_nr); |
| 686 |
} |
| 687 |
} |
| 688 |
break; |
| 689 |
case 1: /* control */ |
| 690 |
if (writeflag==MEM_READ) { |
| 691 |
dev_pckbc_tick(cpu, d); |
| 692 |
|
| 693 |
odata = 0; |
| 694 |
|
| 695 |
/* "Data in buffer" bit */ |
| 696 |
if (d->head[0] != d->tail[0] || |
| 697 |
d->state == STATE_RDCMDBYTE || |
| 698 |
d->state == STATE_RDOUTPUT) |
| 699 |
odata |= KBS_DIB; |
| 700 |
|
| 701 |
if (d->state == STATE_RDCMDBYTE) |
| 702 |
odata |= KBS_OCMD; |
| 703 |
|
| 704 |
odata |= KBS_NOSEC; |
| 705 |
/* debug("[ pckbc: read from CTL status port: " |
| 706 |
"0x%02x ]\n", (int)odata); */ |
| 707 |
} else { |
| 708 |
debug("[ pckbc: write to CTL:"); |
| 709 |
for (i=0; i<len; i++) |
| 710 |
debug(" %02x", data[i]); |
| 711 |
debug(" ]\n"); |
| 712 |
d->reg[relative_addr] = idata; |
| 713 |
|
| 714 |
switch (idata) { |
| 715 |
case 0x10: |
| 716 |
case 0x11: |
| 717 |
/* TODO: For now, don't print warnings about |
| 718 |
these. NetBSD sends these. */ |
| 719 |
break; |
| 720 |
case K_RDCMDBYTE: |
| 721 |
d->state = STATE_RDCMDBYTE; |
| 722 |
break; |
| 723 |
case K_LDCMDBYTE: |
| 724 |
d->state = STATE_LDCMDBYTE; |
| 725 |
break; |
| 726 |
case 0xa7: |
| 727 |
d->cmdbyte |= KC8_MDISABLE; |
| 728 |
break; |
| 729 |
case 0xa8: |
| 730 |
d->cmdbyte &= ~KC8_MDISABLE; |
| 731 |
break; |
| 732 |
case 0xa9: /* test auxiliary port */ |
| 733 |
debug("[ pckbc: CONTROL 0xa9, TODO ]\n"); |
| 734 |
break; |
| 735 |
case 0xaa: /* keyboard self-test */ |
| 736 |
pckbc_add_code(d, 0x55, port_nr); |
| 737 |
break; |
| 738 |
case 0xab: /* keyboard interface self-test */ |
| 739 |
pckbc_add_code(d, 0x00, port_nr); |
| 740 |
break; |
| 741 |
case 0xad: |
| 742 |
d->cmdbyte |= KC8_KDISABLE; |
| 743 |
break; |
| 744 |
case 0xae: |
| 745 |
d->cmdbyte &= ~KC8_KDISABLE; |
| 746 |
break; |
| 747 |
case 0xd0: |
| 748 |
d->state = STATE_RDOUTPUT; |
| 749 |
break; |
| 750 |
case 0xd1: |
| 751 |
d->state = STATE_LDOUTPUT; |
| 752 |
break; |
| 753 |
case 0xd3: /* write to auxiliary device |
| 754 |
output buffer */ |
| 755 |
debug("[ pckbc: CONTROL 0xd3, TODO ]\n"); |
| 756 |
d->state = STATE_WAITING_FOR_AUX_OUT; |
| 757 |
break; |
| 758 |
case 0xd4: /* write to auxiliary port */ |
| 759 |
debug("[ pckbc: CONTROL 0xd4, TODO ]\n"); |
| 760 |
d->state = STATE_WAITING_FOR_AUX; |
| 761 |
break; |
| 762 |
default: |
| 763 |
fatal("[ pckbc: unknown CONTROL 0x%x ]\n", |
| 764 |
(int)idata); |
| 765 |
d->state = STATE_NORMAL; |
| 766 |
} |
| 767 |
} |
| 768 |
break; |
| 769 |
|
| 770 |
/* |
| 771 |
* 8242 (PS2): |
| 772 |
*/ |
| 773 |
|
| 774 |
case PS2 + PS2_TXBUF: |
| 775 |
if (writeflag==MEM_READ) { |
| 776 |
odata = random() & 0xff; |
| 777 |
debug("[ pckbc: read from port %i, PS2_TXBUF: " |
| 778 |
"0x%x ]\n", port_nr, (int)odata); |
| 779 |
} else { |
| 780 |
debug("[ pckbc: write to port %i, PS2_TXBUF: " |
| 781 |
"0x%llx ]\n", port_nr, (long long)idata); |
| 782 |
|
| 783 |
/* Handle keyboard commands: */ |
| 784 |
d->reg[PS2_TXBUF] = idata; |
| 785 |
dev_pckbc_command(d, port_nr); |
| 786 |
} |
| 787 |
break; |
| 788 |
|
| 789 |
case PS2 + PS2_RXBUF: |
| 790 |
if (writeflag==MEM_READ) { |
| 791 |
/* TODO: What should be returned if no data |
| 792 |
is available? */ |
| 793 |
odata = random() & 0xff; |
| 794 |
if (d->head[port_nr] != d->tail[port_nr]) |
| 795 |
odata = pckbc_get_code(d, port_nr); |
| 796 |
debug("[ pckbc: read from port %i, PS2_RXBUF: " |
| 797 |
"0x%02x ]\n", port_nr, (int)odata); |
| 798 |
} else { |
| 799 |
debug("[ pckbc: write to port %i, PS2_RXBUF: " |
| 800 |
"0x%llx ]\n", port_nr, (long long)idata); |
| 801 |
} |
| 802 |
break; |
| 803 |
|
| 804 |
case PS2 + PS2_CONTROL: |
| 805 |
if (writeflag==MEM_READ) { |
| 806 |
debug("[ pckbc: read from port %i, PS2_CONTROL" |
| 807 |
" ]\n", port_nr); |
| 808 |
} else { |
| 809 |
debug("[ pckbc: write to port %i, PS2_CONTROL:" |
| 810 |
" 0x%llx ]\n", port_nr, (long long)idata); |
| 811 |
d->clocksignal = (idata & 0x10) ? 1 : 0; |
| 812 |
d->rx_int_enable = (idata & 0x08) ? 1 : 0; |
| 813 |
d->tx_int_enable = (idata & 0x04) ? 1 : 0; |
| 814 |
} |
| 815 |
break; |
| 816 |
|
| 817 |
case PS2 + PS2_STATUS: |
| 818 |
if (writeflag==MEM_READ) { |
| 819 |
/* 0x08 = transmit buffer empty */ |
| 820 |
odata = d->clocksignal + 0x08; |
| 821 |
|
| 822 |
if (d->head[port_nr] != d->tail[port_nr]) { |
| 823 |
/* 0x10 = receicer data available (?) */ |
| 824 |
odata |= 0x10; |
| 825 |
} |
| 826 |
|
| 827 |
debug("[ pckbc: read from port %i, PS2_STATUS: " |
| 828 |
"0x%llx ]\n", port_nr, (long long)odata); |
| 829 |
} else { |
| 830 |
debug("[ pckbc: write to port %i, PS2_STATUS: " |
| 831 |
"0x%llx ]\n", port_nr, (long long)idata); |
| 832 |
} |
| 833 |
break; |
| 834 |
|
| 835 |
default: |
| 836 |
if (writeflag==MEM_READ) { |
| 837 |
debug("[ pckbc: read from unimplemented reg %i ]\n", |
| 838 |
(int)relative_addr); |
| 839 |
odata = d->reg[relative_addr]; |
| 840 |
} else { |
| 841 |
debug("[ pckbc: write to unimplemented reg %i:", |
| 842 |
(int)relative_addr); |
| 843 |
for (i=0; i<len; i++) |
| 844 |
debug(" %02x", data[i]); |
| 845 |
debug(" ]\n"); |
| 846 |
d->reg[relative_addr] = idata; |
| 847 |
} |
| 848 |
} |
| 849 |
|
| 850 |
/* SGI? TODO: fix */ |
| 851 |
if (len == 8) |
| 852 |
odata |= (odata << 8) | (odata << 16) | (odata << 24) | |
| 853 |
(odata << 32) | (odata << 40) | (odata << 48) | |
| 854 |
(odata << 56); |
| 855 |
|
| 856 |
if (writeflag == MEM_READ) |
| 857 |
memory_writemax64(cpu, data, len, odata); |
| 858 |
|
| 859 |
dev_pckbc_tick(cpu, d); |
| 860 |
|
| 861 |
return 1; |
| 862 |
} |
| 863 |
|
| 864 |
|
| 865 |
/* |
| 866 |
* dev_pckbc_init(): |
| 867 |
* |
| 868 |
* Type should be PCKBC_8042 or PCKBC_8242. |
| 869 |
*/ |
| 870 |
int dev_pckbc_init(struct machine *machine, struct memory *mem, |
| 871 |
uint64_t baseaddr, int type, int keyboard_irqnr, int mouse_irqnr, |
| 872 |
int in_use, int pc_style_flag) |
| 873 |
{ |
| 874 |
struct pckbc_data *d; |
| 875 |
int len = DEV_PCKBC_LENGTH; |
| 876 |
|
| 877 |
d = malloc(sizeof(struct pckbc_data)); |
| 878 |
if (d == NULL) { |
| 879 |
fprintf(stderr, "out of memory\n"); |
| 880 |
exit(1); |
| 881 |
} |
| 882 |
memset(d, 0, sizeof(struct pckbc_data)); |
| 883 |
|
| 884 |
if (type == PCKBC_8242) |
| 885 |
len = 0x18; |
| 886 |
|
| 887 |
if (type == PCKBC_JAZZ) { |
| 888 |
type = PCKBC_8042; |
| 889 |
len = DEV_PCKBC_LENGTH + 0x60; |
| 890 |
} |
| 891 |
|
| 892 |
d->type = type; |
| 893 |
d->keyboard_irqnr = keyboard_irqnr; |
| 894 |
d->mouse_irqnr = mouse_irqnr; |
| 895 |
d->in_use = in_use; |
| 896 |
d->pc_style_flag = pc_style_flag; |
| 897 |
d->translation_table = 2; |
| 898 |
d->rx_int_enable = 1; |
| 899 |
d->output_byte = 0x02; /* A20 enable on PCs */ |
| 900 |
|
| 901 |
d->console_handle = console_start_slave_inputonly( |
| 902 |
machine, "pckbc", d->in_use); |
| 903 |
|
| 904 |
memory_device_register(mem, "pckbc", baseaddr, |
| 905 |
len, dev_pckbc_access, d, DM_DEFAULT, NULL); |
| 906 |
machine_add_tickfunction(machine, dev_pckbc_tick, d, |
| 907 |
PCKBC_TICKSHIFT, 0.0); |
| 908 |
|
| 909 |
return d->console_handle; |
| 910 |
} |
| 911 |
|
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