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/*-
* Copyright (c) 2004 Marcel Moolenaar
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/uart/uart_dbg.c 158950 2006-05-26 11:54:32Z phk $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <machine/bus.h>
#include <gdb/gdb.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_cpu.h>
static gdb_probe_f uart_dbg_probe;
static gdb_init_f uart_dbg_init;
static gdb_term_f uart_dbg_term;
static gdb_getc_f uart_dbg_getc;
static gdb_putc_f uart_dbg_putc;
GDB_DBGPORT(uart, uart_dbg_probe, uart_dbg_init, uart_dbg_term,
uart_dbg_getc, uart_dbg_putc);
static struct uart_devinfo uart_dbgport;
static int
uart_dbg_probe(void)
{
if (uart_cpu_getdev(UART_DEV_DBGPORT, &uart_dbgport))
return (-1);
if (uart_probe(&uart_dbgport))
return (-1);
return (0);
}
static void
uart_dbg_init(void)
{
uart_dbgport.type = UART_DEV_DBGPORT;
uart_add_sysdev(&uart_dbgport);
uart_init(&uart_dbgport);
}
static void
uart_dbg_term(void)
{
uart_term(&uart_dbgport);
}
static void
uart_dbg_putc(int c)
{
uart_putc(&uart_dbgport, c);
}
static int
uart_dbg_getc(void)
{
return (uart_poll(&uart_dbgport));
}