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memswitch on /boot
Hi all,
This is a patch that adds memswitch like command to /boot.
The new command name is 'switch'. Of course the name was
inspired from Human68k's switch.x.
Other candidates that I thought are 'sram' or 'sw'...
I thought that 'memswitch' is too long to enter without
any shell completion and its syntax is also too complex to
implement on the bootloader.
This command is a subset of the original switch.x (and
memswitch) that specialized for required situation. Currently
only 3 parameters are supported. i.e., boot, rom, memory.
These parameter names and values are also inspired from
'switch.x ?' help message (but not the same).
- 'boot' and 'rom' specify the boot device/address.
- 'memory' specifies the main memory size and it should
match the actual installed memory size.
Please look at the help message (cmd_switch_help() function
in switch.c) for how to use :)
Any comments? or I will commit it few days or a week after.
---
Tetsuya Isaki <isaki%pastel-flower.jp@localhost / isaki%NetBSD.org@localhost>
Index: sys/arch/x68k/stand/boot/Makefile
===================================================================
RCS file: /cvsroot/src/sys/arch/x68k/stand/boot/Makefile,v
retrieving revision 1.23
diff -u -r1.23 Makefile
--- sys/arch/x68k/stand/boot/Makefile 6 Jul 2014 06:28:49 -0000 1.23
+++ sys/arch/x68k/stand/boot/Makefile 1 Aug 2014 09:44:12 -0000
@@ -22,7 +22,7 @@
STRIP?= /usr/bin/strip
OBJCOPY?= /usr/bin/objcopy
-SRCS= srt0.S boot.c conf.c exec_image.S
+SRCS= srt0.S boot.c conf.c switch.c exec_image.S
S= ${.CURDIR}/../../../..
M= ${.CURDIR}/../..
COMMONDIR= $M/stand/common
Index: sys/arch/x68k/stand/boot/boot.c
===================================================================
RCS file: /cvsroot/src/sys/arch/x68k/stand/boot/boot.c,v
retrieving revision 1.21
diff -u -r1.21 boot.c
--- sys/arch/x68k/stand/boot/boot.c 6 Jul 2014 08:10:21 -0000 1.21
+++ sys/arch/x68k/stand/boot/boot.c 1 Aug 2014 09:44:12 -0000
@@ -39,6 +39,7 @@
#include "libx68k.h"
#include "iocs.h"
+#include "switch.h"
#include "exec_image.h"
@@ -122,6 +123,7 @@
#ifndef NETBOOT
printf("ls [dev:][directory]\n");
#endif
+ printf("switch [show | key=val]\n");
printf("halt\nreboot\n");
}
@@ -318,6 +320,8 @@
else if (strcmp("halt", p) == 0 ||
strcmp("reboot", p) == 0)
exit(0);
+ else if (strcmp("switch", p) == 0)
+ cmd_switch(options);
#ifndef NETBOOT
else if (strcmp("ls", p) == 0)
cmd_ls(options);
Index: sys/arch/x68k/stand/netboot/Makefile
===================================================================
RCS file: /cvsroot/src/sys/arch/x68k/stand/netboot/Makefile,v
retrieving revision 1.3
diff -u -r1.3 Makefile
--- sys/arch/x68k/stand/netboot/Makefile 6 Jul 2014 06:28:49 -0000
1.3
+++ sys/arch/x68k/stand/netboot/Makefile 1 Aug 2014 09:44:13 -0000
@@ -29,7 +29,7 @@
BOOTDIR= ${.CURDIR}/../boot
.PATH: ${BOOTDIR}
-SRCS= srt0.S boot.c conf.c exec_image.S if_ne.c ne.c dp8390.c
+SRCS= srt0.S boot.c conf.c switch.c exec_image.S if_ne.c ne.c dp8390.c
S= ${.CURDIR}/../../../..
M= ${.CURDIR}/../..
COMMONDIR= $M/stand/common
--- /dev/null 2014-08-01 18:55:01.000000000 +0900
+++ sys/arch/x68k/stand/boot/switch.c 2014-08-01 18:59:49.000000000 +0900
@@ -0,0 +1,333 @@
+/* $NetBSD$ */
+
+/*
+ * Copyright (c) 2014 Tetsuya Isaki. 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/param.h>
+#include <lib/libsa/stand.h>
+#include <lib/libkern/libkern.h>
+
+#include "switch.h"
+
+#define SRAM_MEMSIZE (*((volatile uint32_t *)0x00ed0008))
+#define SRAM_ROMADDR (*((volatile uint32_t *)0x00ed000c))
+#define SRAM_RAMADDR (*((volatile uint32_t *)0x00ed0010))
+#define SRAM_BOOTDEV (*((volatile uint16_t *)0x00ed0018))
+
+#define SYSPORT_SRAM_WP (*((volatile uint8_t *)0x00e8e00d))
+
+static int hextoi(const char *);
+static void cmd_switch_help(void);
+static void cmd_switch_show(void);
+static void cmd_switch_show_boot(void);
+static void cmd_switch_show_rom(void);
+static void cmd_switch_show_memory(void);
+static const char *romaddr_tostr(uint32_t);
+static const char *get_romaddr_name(uint32_t);
+static void cmd_switch_boot(const char *);
+static void cmd_switch_rom(const char *);
+static void cmd_switch_memory(const char *);
+
+static inline void
+sram_write_enable(void)
+{
+ SYSPORT_SRAM_WP = 0x31;
+}
+
+static inline void
+sram_write_disable(void)
+{
+ SYSPORT_SRAM_WP = 0;
+}
+
+/* XXX atoi is dumb copy from i386/stand/lib/bootmenu.c ... */
+#define isnum(c) ((c) >= '0' && (c) <= '9')
+static int
+atoi(const char *in)
+{
+ char *c;
+ int ret;
+
+ ret = 0;
+ c = (char *)in;
+ if (*c == '-')
+ c++;
+ for (; isnum(*c); c++)
+ ret = (ret * 10) + (*c - '0');
+
+ return (*in == '-') ? -ret : ret;
+}
+
+#define isxdigit(c) (isnum(c) || (((c) | 0x20) >= 'a' && ((c) | 0x20) <= 'f'))
+static int
+hextoi(const char *in)
+{
+ char *c;
+ int ret;
+
+ ret = 0;
+ c = (char *)in;
+ for (; isxdigit(*c); c++) {
+ ret = (ret * 16) +
+ (*c > '9' ? ((*c | 0x20) - 'a' + 10) : *c - '0');
+ }
+ return ret;
+}
+
+static void
+cmd_switch_help(void)
+{
+ printf(
+ "usage: switch <key>=<val>\n"
+ " boot=[std | inscsi<N> | exscsi<N> | fd<N> | rom ]\n"
+ " rom=[ inscsi<N> | exscsi<N> | $<addr> ]\n"
+ " memory=<1..12> (unit:MB)\n"
+ " switch show\n"
+ );
+}
+
+void
+cmd_switch(char *arg)
+{
+ char *val;
+
+ if (strcmp(arg, "show") == 0) {
+ cmd_switch_show();
+ return;
+ }
+
+ val = strchr(arg, '=');
+ if (val == NULL) {
+ cmd_switch_help();
+ return;
+ }
+ *val++ = '\0';
+
+ if (strcmp(arg, "boot") == 0) {
+ cmd_switch_boot(val);
+ } else if (strcmp(arg, "rom") == 0) {
+ cmd_switch_rom(val);
+ } else if (strcmp(arg, "memory") == 0) {
+ cmd_switch_memory(val);
+ } else {
+ cmd_switch_help();
+ }
+}
+
+static void
+cmd_switch_show(void)
+{
+ cmd_switch_show_boot();
+ cmd_switch_show_rom();
+ cmd_switch_show_memory();
+}
+
+static void
+cmd_switch_show_boot(void)
+{
+ uint32_t romaddr;
+ uint16_t bootdev;
+ const char *name;
+
+ bootdev = SRAM_BOOTDEV;
+ romaddr = SRAM_ROMADDR;
+
+ /*
+ * $0000: std
+ * $8n00: sasi<N>
+ * $9n70: fd<N>
+ * $a000: ROM
+ * $b000: RAM
+ */
+ printf("boot=");
+ switch (bootdev >> 12) {
+ default:
+ case 0x0:
+ /*
+ * The real order is fd->sasi->rom->ram
+ * but it is a bit redundant..
+ */
+ printf("std (fd -> ");
+ name = get_romaddr_name(romaddr);
+ if (name)
+ printf("%s)", name);
+ else
+ printf("rom$%x)", romaddr);
+ break;
+ case 0x8:
+ printf("sasi%d", (bootdev >> 8) & 15);
+ break;
+ case 0x9:
+ printf("fd%d", (bootdev >> 8) & 3);
+ break;
+ case 0xa:
+ printf("rom%s", romaddr_tostr(romaddr));
+ break;
+ case 0xb:
+ printf("ram$%x", SRAM_RAMADDR);
+ break;
+ }
+ printf("\n");
+}
+
+static void
+cmd_switch_show_rom(void)
+{
+ uint32_t romaddr;
+
+ romaddr = SRAM_ROMADDR;
+ printf("rom=%s\n", romaddr_tostr(romaddr));
+}
+
+static void
+cmd_switch_show_memory(void)
+{
+ printf("memory=%d MB\n", SRAM_MEMSIZE / (1024 * 1024));
+}
+
+/* return rom address as string with name if any */
+static const char *
+romaddr_tostr(uint32_t addr)
+{
+ static char buf[32];
+ const char *name;
+
+ name = get_romaddr_name(addr);
+ if (name)
+ snprintf(buf, sizeof(buf), "$%x (%s)", addr, name);
+ else
+ snprintf(buf, sizeof(buf), "$%x", addr);
+
+ return buf;
+}
+
+/*
+ * return "inscsiN" / "exscsiN" if addr is in range of SCSI boot.
+ * Otherwise return NULL.
+ */
+static const char *
+get_romaddr_name(uint32_t addr)
+{
+ static char buf[8];
+
+ if (0xfc0000 <= addr && addr < 0xfc0020 && addr % 4 == 0) {
+ snprintf(buf, sizeof(buf), "inscsi%d", (addr >> 2) & 7);
+ } else if (0xea0020 <= addr && addr < 0xea0040 && addr % 4 == 0) {
+ snprintf(buf, sizeof(buf), "exscsi%d", (addr >> 2) & 7);
+ } else {
+ return NULL;
+ }
+ return buf;
+}
+
+static void
+cmd_switch_boot(const char *arg)
+{
+ int id;
+ uint32_t romaddr;
+ uint16_t bootdev;
+
+ romaddr = 0xffffffff;
+
+ if (strcmp(arg, "std") == 0) {
+ bootdev = 0x0000;
+
+ } else if (strcmp(arg, "rom") == 0) {
+ bootdev = 0xa000;
+
+ } else if (strncmp(arg, "inscsi", 6) == 0) {
+ id = (arg[6] - '0') & 7;
+ bootdev = 0xa000;
+ romaddr = 0xfc0000 + id * 4;
+
+ } else if (strncmp(arg, "exscsi", 6) == 0) {
+ id = (arg[6] - '0') & 7;
+ bootdev = 0xa000;
+ romaddr = 0xea0020 + id * 4;
+
+ } else if (strncmp(arg, "fd", 2) == 0) {
+ id = (arg[2] - '0') & 3;
+ bootdev = 0x9070 | (id << 8);
+
+ } else {
+ cmd_switch_help();
+ return;
+ }
+
+ sram_write_enable();
+ SRAM_BOOTDEV = bootdev;
+ if (romaddr != 0xffffffff)
+ SRAM_ROMADDR = romaddr;
+ sram_write_disable();
+
+ cmd_switch_show_boot();
+}
+
+static void
+cmd_switch_rom(const char *arg)
+{
+ int id;
+ uint32_t romaddr;
+
+ if (strncmp(arg, "inscsi", 6) == 0) {
+ id = (arg[6] - '0') & 7;
+ romaddr = 0xfc0000 + id * 4;
+
+ } else if (strncmp(arg, "exscsi", 6) == 0) {
+ id = (arg[6] - '0') & 7;
+ romaddr = 0xea0020 + id * 4;
+
+ } else if (*arg == '$') {
+ romaddr = hextoi(arg + 1);
+
+ } else {
+ cmd_switch_help();
+ return;
+ }
+
+ sram_write_enable();
+ SRAM_ROMADDR = romaddr;
+ sram_write_disable();
+
+ cmd_switch_show_rom();
+}
+
+static void
+cmd_switch_memory(const char *arg)
+{
+ int num;
+
+ num = atoi(arg);
+ if (num < 1 || num > 12) {
+ cmd_switch_help();
+ return;
+ }
+
+ sram_write_enable();
+ SRAM_MEMSIZE = num * (1024 * 1024);
+ sram_write_disable();
+
+ cmd_switch_show_memory();
+}
--- /dev/null 2014-08-01 18:55:01.000000000 +0900
+++ sys/arch/x68k/stand/boot/switch.h 2014-08-01 14:39:22.000000000 +0900
@@ -0,0 +1,28 @@
+/* $NetBSD$ */
+
+/*
+ * Copyright (c) 2014 Tetsuya Isaki. 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.
+ */
+
+extern void cmd_switch(char *);
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