Module Name: src
Committed By: rin
Date: Mon Jul 24 01:56:59 UTC 2023
Modified Files:
src/sys/arch/i386/stand/efiboot: Makefile.efiboot eficons.c
Added Files:
src/sys/arch/i386/stand/efiboot: eficpufunc.c eficpufunc.h
Log Message:
efiboot/x86: Add serial console support via raw I/O port access
Unfortunately, some (most?) UEFI implementations do not support
com ports by ``Serial I/O Protocol''.
``PNP0501-0'' and friends are not recognized also.
In this case, if user explicitly requires to switch to serial
console by ``consdev'' command, try to use raw I/O port access.
Ugly, but what FreeBSD does, at least.
Proposed as PR port-amd64/57523
To generate a diff of this commit:
cvs rdiff -u -r1.21 -r1.22 src/sys/arch/i386/stand/efiboot/Makefile.efiboot
cvs rdiff -u -r1.12 -r1.13 src/sys/arch/i386/stand/efiboot/eficons.c
cvs rdiff -u -r0 -r1.1 src/sys/arch/i386/stand/efiboot/eficpufunc.c \
src/sys/arch/i386/stand/efiboot/eficpufunc.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/i386/stand/efiboot/Makefile.efiboot
diff -u src/sys/arch/i386/stand/efiboot/Makefile.efiboot:1.21 src/sys/arch/i386/stand/efiboot/Makefile.efiboot:1.22
--- src/sys/arch/i386/stand/efiboot/Makefile.efiboot:1.21 Sat Jun 3 08:52:56 2023
+++ src/sys/arch/i386/stand/efiboot/Makefile.efiboot Mon Jul 24 01:56:59 2023
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile.efiboot,v 1.21 2023/06/03 08:52:56 lukem Exp $
+# $NetBSD: Makefile.efiboot,v 1.22 2023/07/24 01:56:59 rin Exp $
S= ${.CURDIR}/../../../../..
@@ -14,9 +14,11 @@ AFLAGS.start.S= ${${ACTIVE_CC} == "clang
SOURCES= start.S boot.c conf.c devopen.c dev_net.c self_reloc.c panic.c
SOURCES+= efiboot.c efichar.c eficons.c efidelay.c efidev.c
+SOURCES+= eficpufunc.c
SOURCES+= efidisk.c efidisk_ll.c efigetsecs.c efimemory.c
SOURCES+= efinet.c efipxe.c
LIBI386SRCS= biosdisk.c bootinfo.c bootinfo_biosgeom.c bootmenu.c
+LIBI386SRCS+= comio_direct.c
LIBI386SRCS+= diskbuf.c exec.c menuutils.c parseutils.c pread.c
LIBI386SRCS+= exec_multiboot1.c exec_multiboot2.c
# use our own nfs implementation
Index: src/sys/arch/i386/stand/efiboot/eficons.c
diff -u src/sys/arch/i386/stand/efiboot/eficons.c:1.12 src/sys/arch/i386/stand/efiboot/eficons.c:1.13
--- src/sys/arch/i386/stand/efiboot/eficons.c:1.12 Thu Oct 28 06:13:13 2021
+++ src/sys/arch/i386/stand/efiboot/eficons.c Mon Jul 24 01:56:59 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: eficons.c,v 1.12 2021/10/28 06:13:13 kim Exp $ */
+/* $NetBSD: eficons.c,v 1.13 2023/07/24 01:56:59 rin Exp $ */
/*-
* Copyright (c) 2016 Kimihiro Nonaka <non...@netbsd.org>
@@ -29,6 +29,8 @@
#include <sys/bitops.h>
#include <sys/stdint.h>
+#include <comio_direct.h>
+
#include "efiboot.h"
#include "bootinfo.h"
@@ -60,6 +62,8 @@ static u_char serbuf[16];
static int serbuf_read = 0;
static int serbuf_write = 0;
+static int raw_com_addr = 0;
+
static void eficons_init_video(void);
static void efi_switch_video_to_text_mode(void);
@@ -76,6 +80,12 @@ static int efi_com_putc(int);
static int efi_com_status(int);
static int efi_com_waitforinputevent(uint64_t);
+static int raw_com_init(int, int);
+static int raw_com_getc(void);
+static int raw_com_putc(int);
+static int raw_com_status(int);
+static int raw_com_waitforinputevent(uint64_t);
+
static int efi_find_gop_mode(char *);
static int iodev;
@@ -134,11 +144,8 @@ ok:
case CONSDEV_COM3:
iodev = dev;
btinfo_console.addr = ioport;
- if (btinfo_console.addr == 0) {
- if (!efi_valid_com(iodev))
- goto nocom;
+ if (btinfo_console.addr == 0)
btinfo_console.addr = getcomaddr(iodev - CONSDEV_COM0);
- }
if (speed != 0)
btinfo_console.speed = speed;
efi_com_init(btinfo_console.addr, btinfo_console.speed);
@@ -149,8 +156,6 @@ ok:
case CONSDEV_COM2KBD:
case CONSDEV_COM3KBD:
iodev = dev - CONSDEV_COM0KBD + CONSDEV_COM0;
- if (!efi_valid_com(iodev))
- goto nocom;
btinfo_console.addr = getcomaddr(iodev - CONSDEV_COM0);
efi_cons_putc('0' + iodev - CONSDEV_COM0);
@@ -869,7 +874,7 @@ efi_com_init(int addr, int speed)
return 0;
if (!efi_valid_com(iodev))
- return 0;
+ return raw_com_init(addr, speed);
serio = serios[iodev - CONSDEV_COM0];
@@ -885,6 +890,7 @@ efi_com_init(int addr, int speed)
}
}
+ raw_com_addr = 0;
default_comspeed = speed;
internal_getchar = efi_com_getc;
internal_putchar = efi_com_putc;
@@ -1019,3 +1025,65 @@ efi_com_waitforinputevent(uint64_t timeo
return ETIMEDOUT;
return EINVAL;
}
+
+static int
+raw_com_init(int addr, int speed)
+{
+
+ if (addr == 0 || speed <= 0)
+ return 0;
+
+ speed = cominit_d(addr, speed);
+
+ raw_com_addr = addr;
+ default_comspeed = speed;
+ internal_getchar = raw_com_getc;
+ internal_putchar = raw_com_putc;
+ internal_iskey = raw_com_status;
+ internal_waitforinputevent = raw_com_waitforinputevent;
+
+ return speed;
+}
+
+static int
+raw_com_getc(void)
+{
+
+ if (raw_com_addr == 0)
+ panic("%s: Invalid serial port", __func__);
+ return comgetc_d(raw_com_addr);
+}
+
+static int
+raw_com_putc(int c)
+{
+
+ if (raw_com_addr == 0)
+ panic("%s: Invalid serial port", __func__);
+ return computc_d(c, raw_com_addr);
+}
+
+static int
+raw_com_status(int intr)
+{
+
+ if (raw_com_addr == 0)
+ panic("%s: Invalid serial port", __func__);
+ return comstatus_d(raw_com_addr);
+}
+
+static int
+raw_com_waitforinputevent(uint64_t timeout /* in 0.1 usec */)
+{
+ uint64_t ms;
+
+ if (raw_com_addr == 0)
+ panic("%s: Invalid serial port", __func__);
+
+ for (ms = howmany(timeout, 10 * 1000); ms != 0; ms--) {
+ if (raw_com_status(0))
+ return 0;
+ uefi_call_wrapper(BS->Stall, 1, 1000);
+ }
+ return ETIMEDOUT;
+}
Added files:
Index: src/sys/arch/i386/stand/efiboot/eficpufunc.c
diff -u /dev/null src/sys/arch/i386/stand/efiboot/eficpufunc.c:1.1
--- /dev/null Mon Jul 24 01:56:59 2023
+++ src/sys/arch/i386/stand/efiboot/eficpufunc.c Mon Jul 24 01:56:59 2023
@@ -0,0 +1,48 @@
+/* $NetBSD: eficpufunc.c,v 1.1 2023/07/24 01:56:59 rin Exp $ */
+
+/*-
+ * Copyright (c) 2023 The NetBSD Foundation, 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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>
+#include <sys/types.h>
+
+#include "eficpufunc.h"
+
+uint8_t
+inb(uint32_t addr)
+{
+ uint8_t c;
+
+ __asm volatile ("inb %%dx, %%al" : "=a"(c) : "d"(addr));
+ return c;
+}
+
+void
+outb(uint32_t addr, uint8_t c)
+{
+
+ __asm volatile ("outb %%al, %%dx" : : "a"(c), "d"(addr));
+}
Index: src/sys/arch/i386/stand/efiboot/eficpufunc.h
diff -u /dev/null src/sys/arch/i386/stand/efiboot/eficpufunc.h:1.1
--- /dev/null Mon Jul 24 01:56:59 2023
+++ src/sys/arch/i386/stand/efiboot/eficpufunc.h Mon Jul 24 01:56:59 2023
@@ -0,0 +1,38 @@
+/* $NetBSD: eficpufunc.h,v 1.1 2023/07/24 01:56:59 rin Exp $ */
+
+/*-
+ * Copyright (c) 2007 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Andrew Doran.
+ *
+ * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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.
+ */
+
+/*
+ * Functions compatible to i386/stand/lib/cpufunc.h with UEFI ABI.
+ * Currently, only used for raw console I/O by eficons.c.
+ */
+
+uint8_t inb(uint32_t);
+void outb(uint32_t, uint8_t);
