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/* |
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* Copyright (C) 2003-2005 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 1.37 2005/02/22 06:26:10 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. |
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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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|
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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 14 |
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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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int any_command_used; |
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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 type; |
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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 state; |
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int cmdbyte; |
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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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|
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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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|
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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(): |
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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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static void ascii_to_pc_scancodes(int a, struct pckbc_data *d) |
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{ |
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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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|
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if (shift) |
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pckbc_add_code(d, 0x2a, p); |
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else |
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pckbc_add_code(d, 0x2a + 0x80, p); |
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|
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if (ctrl) |
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pckbc_add_code(d, 0x1d, p); |
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|
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/* |
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* TODO: Release for all of these? |
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*/ |
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|
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if (a==27) pckbc_add_code(d, 0x01, p); |
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|
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if (a=='1') pckbc_add_code(d, 0x02, p); |
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if (a=='2') pckbc_add_code(d, 0x03, p); |
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if (a=='3') pckbc_add_code(d, 0x04, p); |
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if (a=='4') pckbc_add_code(d, 0x05, p); |
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if (a=='5') pckbc_add_code(d, 0x06, p); |
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if (a=='6') pckbc_add_code(d, 0x07, p); |
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if (a=='7') pckbc_add_code(d, 0x08, p); |
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if (a=='8') pckbc_add_code(d, 0x09, p); |
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if (a=='9') pckbc_add_code(d, 0x0a, p); |
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if (a=='0') pckbc_add_code(d, 0x0b, p); |
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if (a=='-') pckbc_add_code(d, 0x0c, p); |
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if (a=='=') pckbc_add_code(d, 0x0d, p); |
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|
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if (a=='!') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x02, p); } |
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if (a=='@') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x03, p); } |
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if (a=='#') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x04, p); } |
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if (a=='$') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x05, p); } |
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if (a=='%') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x06, p); } |
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if (a=='^') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x07, p); } |
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if (a=='&') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x08, p); } |
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if (a=='*') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x09, p); } |
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if (a=='(') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x0a, p); } |
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if (a==')') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x0b, p); } |
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if (a=='_') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x0c, p); } |
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if (a=='+') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x0d, p); } |
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|
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if (a=='\b') pckbc_add_code(d, 0x0e, p); |
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|
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if (a=='\t') pckbc_add_code(d, 0x0f, p); |
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if (a=='q') pckbc_add_code(d, 0x10, p); |
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if (a=='w') pckbc_add_code(d, 0x11, p); |
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if (a=='e') pckbc_add_code(d, 0x12, p); |
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if (a=='r') pckbc_add_code(d, 0x13, p); |
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if (a=='t') pckbc_add_code(d, 0x14, p); |
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if (a=='y') pckbc_add_code(d, 0x15, p); |
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if (a=='u') pckbc_add_code(d, 0x16, p); |
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if (a=='i') pckbc_add_code(d, 0x17, p); |
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if (a=='o') pckbc_add_code(d, 0x18, p); |
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if (a=='p') pckbc_add_code(d, 0x19, p); |
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|
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if (a=='[') pckbc_add_code(d, 0x1a, p); |
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if (a=='{') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x1a, p); } |
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if (a==']') pckbc_add_code(d, 0x1b, p); |
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if (a=='}') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x1b, p); } |
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|
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if (a=='\n' || a=='\r') pckbc_add_code(d, 0x1c, p); |
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|
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if (a=='a') pckbc_add_code(d, 0x1e, p); |
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if (a=='s') pckbc_add_code(d, 0x1f, p); |
| 222 |
if (a=='d') pckbc_add_code(d, 0x20, p); |
| 223 |
if (a=='f') pckbc_add_code(d, 0x21, p); |
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if (a=='g') pckbc_add_code(d, 0x22, p); |
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if (a=='h') pckbc_add_code(d, 0x23, p); |
| 226 |
if (a=='j') pckbc_add_code(d, 0x24, p); |
| 227 |
if (a=='k') pckbc_add_code(d, 0x25, p); |
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if (a=='l') pckbc_add_code(d, 0x26, p); |
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|
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if (a==';') pckbc_add_code(d, 0x27, p); |
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if (a==':') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x27, p); } |
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if (a=='\'') pckbc_add_code(d, 0x28, p); |
| 234 |
if (a=='"') { pckbc_add_code(d, 0x2a, p); |
| 235 |
pckbc_add_code(d, 0x28, p); } |
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if (a=='~') pckbc_add_code(d, 0x29, p); |
| 237 |
|
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if (a=='\\') pckbc_add_code(d, 0x2b, p); |
| 239 |
if (a=='|') { pckbc_add_code(d, 0x2a, p); |
| 240 |
pckbc_add_code(d, 0x2b, p); } |
| 241 |
|
| 242 |
if (a=='z') pckbc_add_code(d, 0x2c, p); |
| 243 |
if (a=='x') pckbc_add_code(d, 0x2d, p); |
| 244 |
if (a=='c') pckbc_add_code(d, 0x2e, p); |
| 245 |
if (a=='v') pckbc_add_code(d, 0x2f, p); |
| 246 |
if (a=='b') pckbc_add_code(d, 0x30, p); |
| 247 |
if (a=='n') pckbc_add_code(d, 0x31, p); |
| 248 |
if (a=='m') pckbc_add_code(d, 0x32, p); |
| 249 |
|
| 250 |
if (a==',') pckbc_add_code(d, 0x33, p); |
| 251 |
if (a=='<') { pckbc_add_code(d, 0x2a, p); |
| 252 |
pckbc_add_code(d, 0x33, p); } |
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if (a=='.') pckbc_add_code(d, 0x34, p); |
| 254 |
if (a=='>') { pckbc_add_code(d, 0x2a, p); |
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pckbc_add_code(d, 0x34, p); } |
| 256 |
if (a=='/') pckbc_add_code(d, 0x35, p); |
| 257 |
if (a=='?') { pckbc_add_code(d, 0x2a, p); |
| 258 |
pckbc_add_code(d, 0x35, p); } |
| 259 |
|
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if (a==' ') pckbc_add_code(d, 0x39, p); |
| 261 |
|
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/* Release ctrl: */ |
| 263 |
if (ctrl) |
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pckbc_add_code(d, 0x1d + 0x80, p); |
| 265 |
} |
| 266 |
|
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|
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/* |
| 269 |
* dev_pckbc_tick(): |
| 270 |
*/ |
| 271 |
void dev_pckbc_tick(struct cpu *cpu, void *extra) |
| 272 |
{ |
| 273 |
struct pckbc_data *d = extra; |
| 274 |
int port_nr; |
| 275 |
int ch; |
| 276 |
|
| 277 |
if (d->in_use && d->any_command_used && |
| 278 |
console_charavail(d->console_handle)) { |
| 279 |
ch = console_readchar(d->console_handle); |
| 280 |
if (ch >= 0) |
| 281 |
ascii_to_pc_scancodes(ch, d); |
| 282 |
} |
| 283 |
|
| 284 |
/* TODO: mouse movements? */ |
| 285 |
|
| 286 |
for (port_nr=0; port_nr<2; port_nr++) { |
| 287 |
/* Cause receive interrupt, |
| 288 |
if there's something in the receive buffer: */ |
| 289 |
if (d->head[port_nr] != d->tail[port_nr] && d->rx_int_enable) { |
| 290 |
cpu_interrupt(cpu, port_nr==0? d->keyboard_irqnr |
| 291 |
: d->mouse_irqnr); |
| 292 |
} else { |
| 293 |
cpu_interrupt_ack(cpu, port_nr==0? d->keyboard_irqnr |
| 294 |
: d->mouse_irqnr); |
| 295 |
} |
| 296 |
} |
| 297 |
} |
| 298 |
|
| 299 |
|
| 300 |
/* |
| 301 |
* dev_pckbc_command(): |
| 302 |
*/ |
| 303 |
static void dev_pckbc_command(struct pckbc_data *d, int port_nr) |
| 304 |
{ |
| 305 |
int cmd = d->reg[PC_CMD]; |
| 306 |
|
| 307 |
d->any_command_used = 1; |
| 308 |
|
| 309 |
if (d->type == PCKBC_8242) |
| 310 |
cmd = d->reg[PS2_TXBUF]; |
| 311 |
|
| 312 |
if (d->state == STATE_WAITING_FOR_TRANSLTABLE) { |
| 313 |
debug("[ pckbc: switching to translation table 0x%02x ]\n", |
| 314 |
cmd); |
| 315 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 316 |
d->state = STATE_NORMAL; |
| 317 |
return; |
| 318 |
} |
| 319 |
|
| 320 |
switch (cmd) { |
| 321 |
case 0x00: |
| 322 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 323 |
break; |
| 324 |
case KBC_MODEIND: /* Set LEDs */ |
| 325 |
/* Just ACK, no LEDs are actually set. */ |
| 326 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 327 |
break; |
| 328 |
case KBC_SETTABLE: |
| 329 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 330 |
d->state = STATE_WAITING_FOR_TRANSLTABLE; |
| 331 |
break; |
| 332 |
case KBC_ENABLE: |
| 333 |
d->keyscanning_enabled = 1; |
| 334 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 335 |
break; |
| 336 |
case KBC_DISABLE: |
| 337 |
d->keyscanning_enabled = 0; |
| 338 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 339 |
break; |
| 340 |
case KBC_SETDEFAULT: |
| 341 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 342 |
break; |
| 343 |
case KBC_RESET: |
| 344 |
pckbc_add_code(d, KBR_ACK, port_nr); |
| 345 |
pckbc_add_code(d, KBR_RSTDONE, port_nr); |
| 346 |
break; |
| 347 |
default: |
| 348 |
fatal("[ pckbc: UNIMPLEMENTED command 0x%02x ]\n", cmd); |
| 349 |
} |
| 350 |
} |
| 351 |
|
| 352 |
|
| 353 |
/* |
| 354 |
* dev_pckbc_access(): |
| 355 |
*/ |
| 356 |
int dev_pckbc_access(struct cpu *cpu, struct memory *mem, |
| 357 |
uint64_t relative_addr, unsigned char *data, size_t len, |
| 358 |
int writeflag, void *extra) |
| 359 |
{ |
| 360 |
uint64_t idata = 0, odata = 0; |
| 361 |
int i, port_nr = 0; |
| 362 |
struct pckbc_data *d = extra; |
| 363 |
|
| 364 |
idata = memory_readmax64(cpu, data, len); |
| 365 |
|
| 366 |
#ifdef PCKBC_DEBUG |
| 367 |
if (writeflag == MEM_WRITE) |
| 368 |
fatal("[ pckbc: write to addr 0x%x: 0x%x ]\n", |
| 369 |
(int)relative_addr, (int)idata); |
| 370 |
else |
| 371 |
fatal("[ pckbc: read from addr 0x%x ]\n", |
| 372 |
(int)relative_addr); |
| 373 |
#endif |
| 374 |
|
| 375 |
/* For JAZZ-based machines: */ |
| 376 |
if (relative_addr >= 0x60) |
| 377 |
relative_addr -= 0x60; |
| 378 |
|
| 379 |
/* 8242 PS2-style: */ |
| 380 |
if (d->type == PCKBC_8242) { |
| 381 |
/* when using 8-byte alignment... */ |
| 382 |
relative_addr /= sizeof(uint64_t); |
| 383 |
/* port_nr = 0 for keyboard, 1 for mouse */ |
| 384 |
port_nr = (relative_addr >> 2); |
| 385 |
relative_addr &= 3; |
| 386 |
relative_addr += PS2; |
| 387 |
} else { |
| 388 |
/* The relative_addr is either 0 or 1, |
| 389 |
but some machines use longer registers than one byte |
| 390 |
each, so this will make things simpler for us: */ |
| 391 |
if (relative_addr) |
| 392 |
relative_addr = 1; |
| 393 |
} |
| 394 |
|
| 395 |
switch (relative_addr) { |
| 396 |
|
| 397 |
/* |
| 398 |
* 8042 (PC): |
| 399 |
*/ |
| 400 |
|
| 401 |
case 0: /* data */ |
| 402 |
if (writeflag==MEM_READ) { |
| 403 |
if (d->state == STATE_RDCMDBYTE) { |
| 404 |
odata = d->cmdbyte; |
| 405 |
d->state = STATE_NORMAL; |
| 406 |
} else { |
| 407 |
if (d->head[0] != d->tail[0]) { |
| 408 |
odata = pckbc_get_code(d, 0); |
| 409 |
d->last_scancode = odata; |
| 410 |
} else { |
| 411 |
odata = d->last_scancode; |
| 412 |
d->last_scancode |= 0x80; |
| 413 |
} |
| 414 |
} |
| 415 |
debug("[ pckbc: read from DATA: 0x%02x ]\n", odata); |
| 416 |
} else { |
| 417 |
debug("[ pckbc: write to DATA:"); |
| 418 |
for (i=0; i<len; i++) |
| 419 |
debug(" %02x", data[i]); |
| 420 |
debug(" ]\n"); |
| 421 |
|
| 422 |
if (d->state == STATE_LDCMDBYTE) { |
| 423 |
d->cmdbyte = idata; |
| 424 |
d->rx_int_enable = d->cmdbyte & |
| 425 |
(KC8_KENABLE | KC8_MENABLE) ? 1 : 0; |
| 426 |
d->state = STATE_NORMAL; |
| 427 |
} else { |
| 428 |
d->reg[relative_addr] = idata; |
| 429 |
dev_pckbc_command(d, port_nr); |
| 430 |
} |
| 431 |
} |
| 432 |
break; |
| 433 |
case 1: /* control */ |
| 434 |
if (writeflag==MEM_READ) { |
| 435 |
dev_pckbc_tick(cpu, d); |
| 436 |
|
| 437 |
odata = 0; |
| 438 |
|
| 439 |
/* "Data in buffer" bit */ |
| 440 |
if (d->head[0] != d->tail[0] || |
| 441 |
d->state == STATE_RDCMDBYTE) |
| 442 |
odata |= KBS_DIB; |
| 443 |
/* odata |= KBS_OCMD; */ |
| 444 |
/* debug("[ pckbc: read from CTL status port: " |
| 445 |
"0x%02x ]\n", (int)odata); */ |
| 446 |
} else { |
| 447 |
debug("[ pckbc: write to CTL:"); |
| 448 |
for (i=0; i<len; i++) |
| 449 |
debug(" %02x", data[i]); |
| 450 |
debug(" ]\n"); |
| 451 |
d->reg[relative_addr] = idata; |
| 452 |
|
| 453 |
switch (idata) { |
| 454 |
case K_RDCMDBYTE: |
| 455 |
d->state = STATE_RDCMDBYTE; |
| 456 |
break; |
| 457 |
case K_LDCMDBYTE: |
| 458 |
d->state = STATE_LDCMDBYTE; |
| 459 |
break; |
| 460 |
case 0xa9: /* test auxiliary port */ |
| 461 |
debug("[ pckbc: CONTROL 0xa9, TODO ]\n"); |
| 462 |
break; |
| 463 |
case 0xaa: /* keyboard self-test */ |
| 464 |
pckbc_add_code(d, 0x55, port_nr); |
| 465 |
break; |
| 466 |
case 0xd4: /* write to auxiliary port */ |
| 467 |
debug("[ pckbc: CONTROL 0xd4, TODO ]\n"); |
| 468 |
break; |
| 469 |
default: |
| 470 |
fatal("[ pckbc: unknown CONTROL 0x%x ]\n", |
| 471 |
idata); |
| 472 |
d->state = STATE_NORMAL; |
| 473 |
} |
| 474 |
} |
| 475 |
break; |
| 476 |
|
| 477 |
/* |
| 478 |
* 8242 (PS2): |
| 479 |
*/ |
| 480 |
|
| 481 |
/* |
| 482 |
* BIG TODO: The following should be rewritten to use dev_pckbc_command() |
| 483 |
* etc, like the 8042 code above does. |
| 484 |
*/ |
| 485 |
|
| 486 |
case PS2 + PS2_TXBUF: |
| 487 |
if (writeflag==MEM_READ) { |
| 488 |
odata = random() & 0xff; |
| 489 |
debug("[ pckbc: read from port %i, PS2_TXBUF: " |
| 490 |
"0x%x ]\n", port_nr, (int)odata); |
| 491 |
} else { |
| 492 |
debug("[ pckbc: write to port %i, PS2_TXBUF: " |
| 493 |
"0x%llx ]\n", port_nr, (long long)idata); |
| 494 |
|
| 495 |
/* Handle keyboard commands: */ |
| 496 |
switch (idata) { |
| 497 |
/* These are incorrect, the second byte of |
| 498 |
commands should be treated better: */ |
| 499 |
case 0x00: /* second byte of 0xed, |
| 500 |
SGI-IP32's prom */ |
| 501 |
pckbc_add_code(d, 0x03, port_nr);/* ack (?) */ |
| 502 |
break; |
| 503 |
case 0x14: /* second byte of 0xfc, |
| 504 |
SGI-IP32's prom */ |
| 505 |
case 0x28: /* second byte of 0xf3, |
| 506 |
SGI-IP32's prom */ |
| 507 |
case 0x76: /* third byte of 0xfc, |
| 508 |
SGI-IP32's prom */ |
| 509 |
case 0x03: /* second byte of |
| 510 |
ATKBD_CMD_GSCANSET (?) */ |
| 511 |
case 0x04: |
| 512 |
pckbc_add_code(d, 0x03, port_nr);/* ? */ |
| 513 |
break; |
| 514 |
|
| 515 |
/* Command bytes: */ |
| 516 |
case 0xf0: /* ATKBD_CMD_GSCANSET (?) */ |
| 517 |
pckbc_add_code(d, 0x03, port_nr);/* ? */ |
| 518 |
break; |
| 519 |
case 0xf2: /* Get keyboard ID */ |
| 520 |
/* The keyboard should generate 2 |
| 521 |
status bytes. */ |
| 522 |
pckbc_add_code(d, 0xab, port_nr); |
| 523 |
pckbc_add_code(d, 0x83, port_nr); |
| 524 |
break; |
| 525 |
case 0xed: /* "ATKBD_CMD_SETLEDS", |
| 526 |
takes 1 byte arg */ |
| 527 |
case 0xf3: /* "PSMOUSE_CMD_SETRATE", |
| 528 |
takes 1 byte arg */ |
| 529 |
case 0xf4: /* "ATKBD_CMD_ENABLE" (or |
| 530 |
PSMOUSE_CMD_ENABLE), no args */ |
| 531 |
case 0xf5: /* "ATKBD_CMD_RESET_DIS" (keyboard, |
| 532 |
according to Linux sources) */ |
| 533 |
case 0xf6: /* "PSMOUSE_CMD_RESET_DIS" (mouse, |
| 534 |
according to Linux sources) */ |
| 535 |
/* TODO: what does this do? */ |
| 536 |
pckbc_add_code(d, 0xfa, port_nr);/* ack (?) */ |
| 537 |
break; |
| 538 |
case 0xfa: /* "ATKBD_CMD_SETALL_MBR" (linux) */ |
| 539 |
pckbc_add_code(d, 0xfa, port_nr);/* ack (?) */ |
| 540 |
break; |
| 541 |
case 0xfc: /* ? */ |
| 542 |
pckbc_add_code(d, 0xfa, port_nr);/* ack (?) */ |
| 543 |
break; |
| 544 |
case 0xff: /* Keyboard reset */ |
| 545 |
/* The keyboard should generate 2 |
| 546 |
status bytes. */ |
| 547 |
pckbc_add_code(d, 0xfa, port_nr);/* ack (?) */ |
| 548 |
pckbc_add_code(d, 0xaa, port_nr); |
| 549 |
/* battery ok (?) */ |
| 550 |
break; |
| 551 |
default: |
| 552 |
debug("[ pckbc: UNIMPLEMENTED keyboard command" |
| 553 |
" 0x%02x (port %i) ]\n", (int)idata, |
| 554 |
port_nr); |
| 555 |
} |
| 556 |
} |
| 557 |
break; |
| 558 |
|
| 559 |
case PS2 + PS2_RXBUF: |
| 560 |
if (writeflag==MEM_READ) { |
| 561 |
/* TODO: What should be returned if no data |
| 562 |
is available? */ |
| 563 |
odata = random() & 0xff; |
| 564 |
if (d->head[port_nr] != d->tail[port_nr]) |
| 565 |
odata = pckbc_get_code(d, port_nr); |
| 566 |
debug("[ pckbc: read from port %i, PS2_RXBUF: " |
| 567 |
"0x%02x ]\n", port_nr, (int)odata); |
| 568 |
} else { |
| 569 |
debug("[ pckbc: write to port %i, PS2_RXBUF: " |
| 570 |
"0x%llx ]\n", port_nr, (long long)idata); |
| 571 |
} |
| 572 |
break; |
| 573 |
|
| 574 |
case PS2 + PS2_CONTROL: |
| 575 |
if (writeflag==MEM_READ) { |
| 576 |
debug("[ pckbc: read from port %i, PS2_CONTROL" |
| 577 |
" ]\n", port_nr); |
| 578 |
} else { |
| 579 |
debug("[ pckbc: write to port %i, PS2_CONTROL:" |
| 580 |
" 0x%llx ]\n", port_nr, (long long)idata); |
| 581 |
d->clocksignal = (idata & 0x10) ? 1 : 0; |
| 582 |
d->rx_int_enable = (idata & 0x08) ? 1 : 0; |
| 583 |
d->tx_int_enable = (idata & 0x04) ? 1 : 0; |
| 584 |
} |
| 585 |
break; |
| 586 |
|
| 587 |
case PS2 + PS2_STATUS: |
| 588 |
if (writeflag==MEM_READ) { |
| 589 |
/* 0x08 = transmit buffer empty */ |
| 590 |
odata = d->clocksignal + 0x08; |
| 591 |
|
| 592 |
if (d->head[port_nr] != d->tail[port_nr]) { |
| 593 |
/* 0x10 = receicer data available (?) */ |
| 594 |
odata |= 0x10; |
| 595 |
} |
| 596 |
|
| 597 |
debug("[ pckbc: read from port %i, PS2_STATUS: " |
| 598 |
"0x%llx ]\n", port_nr, (long long)odata); |
| 599 |
} else { |
| 600 |
debug("[ pckbc: write to port %i, PS2_STATUS: " |
| 601 |
"0x%llx ]\n", port_nr, (long long)idata); |
| 602 |
} |
| 603 |
break; |
| 604 |
|
| 605 |
default: |
| 606 |
if (writeflag==MEM_READ) { |
| 607 |
debug("[ pckbc: read from unimplemented reg %i ]\n", |
| 608 |
(int)relative_addr); |
| 609 |
odata = d->reg[relative_addr]; |
| 610 |
} else { |
| 611 |
debug("[ pckbc: write to unimplemented reg %i:", |
| 612 |
(int)relative_addr); |
| 613 |
for (i=0; i<len; i++) |
| 614 |
debug(" %02x", data[i]); |
| 615 |
debug(" ]\n"); |
| 616 |
d->reg[relative_addr] = idata; |
| 617 |
} |
| 618 |
} |
| 619 |
|
| 620 |
if (writeflag == MEM_READ) |
| 621 |
memory_writemax64(cpu, data, len, odata); |
| 622 |
|
| 623 |
dev_pckbc_tick(cpu, d); |
| 624 |
|
| 625 |
return 1; |
| 626 |
} |
| 627 |
|
| 628 |
|
| 629 |
/* |
| 630 |
* dev_pckbc_init(): |
| 631 |
* |
| 632 |
* Type should be PCKBC_8042 or PCKBC_8242. |
| 633 |
*/ |
| 634 |
int dev_pckbc_init(struct machine *machine, struct memory *mem, |
| 635 |
uint64_t baseaddr, int type, int keyboard_irqnr, int mouse_irqnr, |
| 636 |
int in_use) |
| 637 |
{ |
| 638 |
struct pckbc_data *d; |
| 639 |
int len = DEV_PCKBC_LENGTH; |
| 640 |
|
| 641 |
d = malloc(sizeof(struct pckbc_data)); |
| 642 |
if (d == NULL) { |
| 643 |
fprintf(stderr, "out of memory\n"); |
| 644 |
exit(1); |
| 645 |
} |
| 646 |
memset(d, 0, sizeof(struct pckbc_data)); |
| 647 |
|
| 648 |
if (type == PCKBC_JAZZ) { |
| 649 |
type = PCKBC_8042; |
| 650 |
len = DEV_PCKBC_LENGTH + 0x60; |
| 651 |
} |
| 652 |
|
| 653 |
d->type = type; |
| 654 |
d->keyboard_irqnr = keyboard_irqnr; |
| 655 |
d->mouse_irqnr = mouse_irqnr; |
| 656 |
d->in_use = in_use; |
| 657 |
d->console_handle = console_start_slave_inputonly(machine, "pckbc"); |
| 658 |
|
| 659 |
memory_device_register(mem, "pckbc", baseaddr, |
| 660 |
len, dev_pckbc_access, d, MEM_DEFAULT, NULL); |
| 661 |
machine_add_tickfunction(machine, dev_pckbc_tick, d, PCKBC_TICKSHIFT); |
| 662 |
|
| 663 |
return d->console_handle; |
| 664 |
} |
| 665 |
|
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