c279819e2e
standard (and easier to define away with support in cdefs.h). Also convert two function-like macros to static inline functions for lint and the debugger.
445 lines
9.4 KiB
C
445 lines
9.4 KiB
C
/*
|
|
* Copyright (c) 1992, 1993, 1996
|
|
* Berkeley Software Design, Inc. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Berkeley Software
|
|
* Design, Inc.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``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 Berkeley Software Design, Inc. 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.
|
|
*
|
|
* BSDI port.c,v 2.2 1996/04/08 19:33:03 bostic Exp
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/ioctl.h>
|
|
#include <machine/sysarch.h>
|
|
|
|
#include "doscmd.h"
|
|
#include "tty.h"
|
|
|
|
#define MINPORT 0x000
|
|
#define MAXPORT_MASK (MAXPORT - 1)
|
|
|
|
static __inline int
|
|
in(u_int port)
|
|
{
|
|
int _inb_result;
|
|
|
|
#ifdef __GNUC__
|
|
__asm __volatile ("xorl %%eax,%%eax; inb %%dx,%%al" :
|
|
"=a" (_inb_result) : "d" (port));
|
|
#endif
|
|
return _inb_result;
|
|
}
|
|
|
|
static __inline void
|
|
out(u_int port, int data)
|
|
{
|
|
#ifdef __GNUC__
|
|
__asm __volatile ("outb %%al,%%dx" : : "a" (data), "d" (port));
|
|
#endif
|
|
}
|
|
|
|
FILE *iolog = 0;
|
|
u_long ioports[MAXPORT/32];
|
|
#ifdef __FreeBSD__
|
|
static void
|
|
iomap(int port, int cnt)
|
|
{
|
|
if (port + cnt >= MAXPORT) {
|
|
errno = ERANGE;
|
|
goto bad;
|
|
}
|
|
if (i386_set_ioperm(port, cnt, 1) < 0) {
|
|
bad:
|
|
perror("iomap");
|
|
quit(1);
|
|
}
|
|
}
|
|
|
|
static void
|
|
iounmap(int port, int cnt)
|
|
{
|
|
if (port + cnt >= MAXPORT) {
|
|
errno = ERANGE;
|
|
goto bad;
|
|
}
|
|
if (i386_set_ioperm(port, cnt, 0) < 0) {
|
|
bad:
|
|
perror("iounmap");
|
|
quit(1);
|
|
}
|
|
}
|
|
#else
|
|
static void
|
|
iomap(int port, int cnt)
|
|
{
|
|
|
|
if (port + cnt >= MAXPORT) {
|
|
errno = ERANGE;
|
|
goto bad;
|
|
}
|
|
while (cnt--) {
|
|
ioports[port/32] |= (1 << (port%32));
|
|
port++;
|
|
}
|
|
if (i386_set_ioperm(ioports) < 0) {
|
|
bad:
|
|
perror("iomap");
|
|
quit(1);
|
|
}
|
|
}
|
|
|
|
static void
|
|
iounmap(int port, int cnt)
|
|
{
|
|
|
|
if (port + cnt >= MAXPORT) {
|
|
errno = ERANGE;
|
|
goto bad;
|
|
}
|
|
while (cnt--) {
|
|
ioports[port/32] &= ~(1 << (port%32));
|
|
port++;
|
|
}
|
|
if (i386_set_ioperm(ioports) < 0) {
|
|
bad:
|
|
perror("iounmap");
|
|
quit(1);
|
|
}
|
|
}
|
|
#endif
|
|
void
|
|
outb_traceport(int port, unsigned char byte)
|
|
{
|
|
/*
|
|
if (!iolog && !(iolog = fopen("/tmp/iolog", "a")))
|
|
iolog = stderr;
|
|
|
|
fprintf(iolog, "0x%03X -> %02X\n", port, byte);
|
|
*/
|
|
|
|
iomap(port, 1);
|
|
out(port, byte);
|
|
iounmap(port, 1);
|
|
}
|
|
|
|
unsigned char
|
|
inb_traceport(int port)
|
|
{
|
|
unsigned char byte;
|
|
|
|
/*
|
|
if (!iolog && !(iolog = fopen("/tmp/iolog", "a")))
|
|
iolog = stderr;
|
|
*/
|
|
|
|
iomap(port, 1);
|
|
byte = in(port);
|
|
iounmap(port, 1);
|
|
|
|
/*
|
|
fprintf(iolog, "0x%03X <- %02X\n", port, byte);
|
|
fflush(iolog);
|
|
*/
|
|
return(byte);
|
|
}
|
|
|
|
/*
|
|
* Real input/output to (hopefully) iomapped port
|
|
*/
|
|
void
|
|
outb_port(int port, unsigned char byte)
|
|
{
|
|
out(port, byte);
|
|
}
|
|
|
|
unsigned char
|
|
inb_port(int port)
|
|
{
|
|
return in(port);
|
|
}
|
|
|
|
/*
|
|
* Fake input/output ports
|
|
*/
|
|
|
|
static void
|
|
outb_nullport(int port __unused, unsigned char byte __unused)
|
|
{
|
|
/*
|
|
debug(D_PORT, "outb_nullport called for port 0x%03X = 0x%02X.\n",
|
|
port, byte);
|
|
*/
|
|
}
|
|
|
|
static unsigned char
|
|
inb_nullport(int port __unused)
|
|
{
|
|
/*
|
|
debug(D_PORT, "inb_nullport called for port 0x%03X.\n", port);
|
|
*/
|
|
return(0xff);
|
|
}
|
|
|
|
/*
|
|
* configuration table for ports' emulators
|
|
*/
|
|
|
|
struct portsw {
|
|
unsigned char (*p_inb)(int port);
|
|
void (*p_outb)(int port, unsigned char byte);
|
|
} portsw[MAXPORT];
|
|
|
|
void
|
|
init_io_port_handlers(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAXPORT; i++) {
|
|
if (portsw[i].p_inb == 0)
|
|
portsw[i].p_inb = inb_nullport;
|
|
if (portsw[i].p_outb == 0)
|
|
portsw[i].p_outb = outb_nullport;
|
|
}
|
|
|
|
}
|
|
|
|
void
|
|
define_input_port_handler(int port, unsigned char (*p_inb)(int port))
|
|
{
|
|
if ((port >= MINPORT) && (port < MAXPORT)) {
|
|
portsw[port].p_inb = p_inb;
|
|
} else
|
|
fprintf (stderr, "attempt to handle invalid port 0x%04x", port);
|
|
}
|
|
|
|
void
|
|
define_output_port_handler(int port, void (*p_outb)(int port, unsigned char byte))
|
|
{
|
|
if ((port >= MINPORT) && (port < MAXPORT)) {
|
|
portsw[port].p_outb = p_outb;
|
|
} else
|
|
fprintf (stderr, "attempt to handle invalid port 0x%04x", port);
|
|
}
|
|
|
|
|
|
void
|
|
inb(regcontext_t *REGS, int port)
|
|
{
|
|
unsigned char (*in_handler)(int);
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
in_handler = portsw[port].p_inb;
|
|
else
|
|
in_handler = inb_nullport;
|
|
R_AL = (*in_handler)(port);
|
|
debug(D_PORT, "IN on port %02x -> %02x\n", port, R_AL);
|
|
}
|
|
|
|
void
|
|
insb(regcontext_t *REGS, int port)
|
|
{
|
|
unsigned char (*in_handler)(int);
|
|
unsigned char data;
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
in_handler = portsw[port].p_inb;
|
|
else
|
|
in_handler = inb_nullport;
|
|
data = (*in_handler)(port);
|
|
*(u_char *)MAKEPTR(R_ES, R_DI) = data;
|
|
debug(D_PORT, "INS on port %02x -> %02x\n", port, data);
|
|
|
|
if (R_FLAGS & PSL_D)
|
|
R_DI--;
|
|
else
|
|
R_DI++;
|
|
}
|
|
|
|
void
|
|
inx(regcontext_t *REGS, int port)
|
|
{
|
|
unsigned char (*in_handler)(int);
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
in_handler = portsw[port].p_inb;
|
|
else
|
|
in_handler = inb_nullport;
|
|
R_AL = (*in_handler)(port);
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
in_handler = portsw[port + 1].p_inb;
|
|
else
|
|
in_handler = inb_nullport;
|
|
R_AH = (*in_handler)(port + 1);
|
|
debug(D_PORT, "IN on port %02x -> %04x\n", port, R_AX);
|
|
}
|
|
|
|
void
|
|
insx(regcontext_t *REGS, int port)
|
|
{
|
|
unsigned char (*in_handler)(int);
|
|
unsigned char data;
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
in_handler = portsw[port].p_inb;
|
|
else
|
|
in_handler = inb_nullport;
|
|
data = (*in_handler)(port);
|
|
*(u_char *)MAKEPTR(R_ES, R_DI) = data;
|
|
debug(D_PORT, "INS on port %02x -> %02x\n", port, data);
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
in_handler = portsw[port + 1].p_inb;
|
|
else
|
|
in_handler = inb_nullport;
|
|
data = (*in_handler)(port + 1);
|
|
((u_char *)MAKEPTR(R_ES, R_DI))[1] = data;
|
|
debug(D_PORT, "INS on port %02x -> %02x\n", port, data);
|
|
|
|
if (R_FLAGS & PSL_D)
|
|
R_DI -= 2;
|
|
else
|
|
R_DI += 2;
|
|
}
|
|
|
|
void
|
|
outb(regcontext_t *REGS, int port)
|
|
{
|
|
void (*out_handler)(int, unsigned char);
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
out_handler = portsw[port].p_outb;
|
|
else
|
|
out_handler = outb_nullport;
|
|
(*out_handler)(port, R_AL);
|
|
debug(D_PORT, "OUT on port %02x <- %02x\n", port, R_AL);
|
|
/*
|
|
if (port == 0x3bc && R_AL == 0x55)
|
|
tmode = 1;
|
|
*/
|
|
}
|
|
|
|
void
|
|
outx(regcontext_t *REGS, int port)
|
|
{
|
|
void (*out_handler)(int, unsigned char);
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
out_handler = portsw[port].p_outb;
|
|
else
|
|
out_handler = outb_nullport;
|
|
(*out_handler)(port, R_AL);
|
|
debug(D_PORT, "OUT on port %02x <- %02x\n", port, R_AL);
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
out_handler = portsw[port + 1].p_outb;
|
|
else
|
|
out_handler = outb_nullport;
|
|
(*out_handler)(port + 1, R_AH);
|
|
debug(D_PORT, "OUT on port %02x <- %02x\n", port + 1, R_AH);
|
|
}
|
|
|
|
void
|
|
outsb(regcontext_t *REGS, int port)
|
|
{
|
|
void (*out_handler)(int, unsigned char);
|
|
unsigned char value;
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
out_handler = portsw[port].p_outb;
|
|
else
|
|
out_handler = outb_nullport;
|
|
value = *(u_char *)MAKEPTR(R_ES, R_DI);
|
|
debug(D_PORT, "OUT on port %02x <- %02x\n", port, value);
|
|
(*out_handler)(port, value);
|
|
|
|
if (R_FLAGS & PSL_D)
|
|
R_DI--;
|
|
else
|
|
R_DI++;
|
|
}
|
|
|
|
void
|
|
outsx(regcontext_t *REGS, int port)
|
|
{
|
|
void (*out_handler)(int, unsigned char);
|
|
unsigned char value;
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
out_handler = portsw[port].p_outb;
|
|
else
|
|
out_handler = outb_nullport;
|
|
value = *(u_char *)MAKEPTR(R_ES, R_DI);
|
|
debug(D_PORT, "OUT on port %02x <- %02x\n", port, value);
|
|
(*out_handler)(port, value);
|
|
|
|
if ((port >= MINPORT) && (port < MAXPORT))
|
|
out_handler = portsw[port + 1].p_outb;
|
|
else
|
|
out_handler = outb_nullport;
|
|
value = ((u_char *)MAKEPTR(R_ES, R_DI))[1];
|
|
debug(D_PORT, "OUT on port %02x <- %02x\n", port+1, value);
|
|
(*out_handler)(port + 1, value);
|
|
|
|
if (R_FLAGS & PSL_D)
|
|
R_DI -= 2;
|
|
else
|
|
R_DI += 2;
|
|
}
|
|
|
|
unsigned char port_61 = 0x10;
|
|
int sound_on = 1;
|
|
int sound_freq = 1000;
|
|
|
|
void
|
|
outb_speaker(int port __unused, unsigned char byte)
|
|
{
|
|
#if 0 /*XXXXX*/
|
|
if (raw_kbd) {
|
|
if ((port_61 & 3) != 3) {
|
|
if ((byte & 3) == 3 && /* prtim[2].gate && */ sound_on)
|
|
ioctl(kbd_fd, PCCONIOCSTARTBEEP, &sound_freq);
|
|
} else if ((byte & 3) != 3)
|
|
ioctl(kbd_fd, PCCONIOCSTOPBEEP);
|
|
}
|
|
#endif
|
|
port_61 = byte;
|
|
}
|
|
|
|
unsigned char
|
|
inb_speaker(int port __unused)
|
|
{
|
|
/* port_61 = (port_61 + 1) & 0xff; */
|
|
return(port_61);
|
|
}
|
|
|
|
void
|
|
speaker_init()
|
|
{
|
|
define_input_port_handler(0x61, inb_speaker);
|
|
define_output_port_handler(0x61, outb_speaker);
|
|
|
|
}
|