mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
/* fr30 device support
|
|
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
|
|
Contributed by Cygnus Solutions.
|
|
|
|
This file is part of the GNU simulators.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
/* ??? All of this is just to get something going. wip! */
|
|
|
|
#include "sim-main.h"
|
|
|
|
#ifdef HAVE_DV_SOCKSER
|
|
#include "dv-sockser.h"
|
|
#endif
|
|
|
|
device fr30_devices;
|
|
|
|
int
|
|
device_io_read_buffer (device *me, void *source, int space,
|
|
address_word addr, unsigned nr_bytes,
|
|
SIM_DESC sd, SIM_CPU *cpu, sim_cia cia)
|
|
{
|
|
if (STATE_ENVIRONMENT (sd) != OPERATING_ENVIRONMENT)
|
|
return nr_bytes;
|
|
|
|
#ifdef HAVE_DV_SOCKSER
|
|
if (addr == UART_INCHAR_ADDR)
|
|
{
|
|
int c = dv_sockser_read (sd);
|
|
if (c == -1)
|
|
return 0;
|
|
*(char *) source = c;
|
|
return 1;
|
|
}
|
|
if (addr == UART_STATUS_ADDR)
|
|
{
|
|
int status = dv_sockser_status (sd);
|
|
unsigned char *p = source;
|
|
p[0] = 0;
|
|
p[1] = (((status & DV_SOCKSER_INPUT_EMPTY)
|
|
#ifdef UART_INPUT_READY0
|
|
? UART_INPUT_READY : 0)
|
|
#else
|
|
? 0 : UART_INPUT_READY)
|
|
#endif
|
|
+ ((status & DV_SOCKSER_OUTPUT_EMPTY) ? UART_OUTPUT_READY : 0));
|
|
return 2;
|
|
}
|
|
#endif
|
|
|
|
return nr_bytes;
|
|
}
|
|
|
|
int
|
|
device_io_write_buffer (device *me, const void *source, int space,
|
|
address_word addr, unsigned nr_bytes,
|
|
SIM_DESC sd, SIM_CPU *cpu, sim_cia cia)
|
|
{
|
|
#if WITH_SCACHE
|
|
if (addr == MCCR_ADDR)
|
|
{
|
|
if ((*(const char *) source & MCCR_CP) != 0)
|
|
scache_flush (sd);
|
|
return nr_bytes;
|
|
}
|
|
#endif
|
|
|
|
if (STATE_ENVIRONMENT (sd) != OPERATING_ENVIRONMENT)
|
|
return nr_bytes;
|
|
|
|
#if HAVE_DV_SOCKSER
|
|
if (addr == UART_OUTCHAR_ADDR)
|
|
{
|
|
int rc = dv_sockser_write (sd, *(char *) source);
|
|
return rc == 1;
|
|
}
|
|
#endif
|
|
|
|
return nr_bytes;
|
|
}
|
|
|
|
void
|
|
device_error (device *me, char *message, ...)
|
|
{
|
|
}
|