mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-13 10:02:38 +00:00
9b188af13c
Use polling behaviour for gdb_getc() where convenient, this edges us closer to the console code.
94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/*-
|
|
* 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("$FreeBSD$");
|
|
|
|
#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));
|
|
}
|