Add a coreinfo module which can hexdump arbitrary RAM regions and

allows you to scroll through the RAM contents.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Peter Stuge <peter@stuge.se>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3419 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

4 files changed, 122 insertions, 1 deletions

diff --git a/payloads/coreinfo/Kconfig b/payloads/coreinfo/Kconfig
index c5ce217fb1..4281c66829 100644
--- a/payloads/coreinfo/Kconfig
+++ b/payloads/coreinfo/Kconfig
@@ -68,6 +68,10 @@ config MODULE_BOOTLOG
 	bool "Enable the coreboot bootlog module"
 	default y
 
+config MODULE_RAMDUMP
+	bool "Enable the RAM dump module"
+	default y
+
 config MODULE_LAR
 	bool "Enable the coreboot LAR module"
 	default y
diff --git a/payloads/coreinfo/Makefile b/payloads/coreinfo/Makefile
index 8528ef805b..403eb56e16 100644
--- a/payloads/coreinfo/Makefile
+++ b/payloads/coreinfo/Makefile
@@ -51,7 +51,8 @@ AS = $(LIBPAYLOAD_DIR)/bin/lpas
 INCLUDES = -Ibuild
 CFLAGS := -Wall -Werror -Os $(INCLUDES)
 OBJECTS = cpuinfo_module.o cpuid.S.o pci_module.o coreboot_module.o \
-	  nvram_module.o bootlog_module.o lar_module.o coreinfo.o
+	  nvram_module.o bootlog_module.o ramdump_module.o lar_module.o \
+	  coreinfo.o
 OBJS    = $(patsubst %,$(obj)/%,$(OBJECTS))
 TARGET  = $(obj)/coreinfo.elf
 
diff --git a/payloads/coreinfo/coreinfo.c b/payloads/coreinfo/coreinfo.c
index 99a3baa71e..3f49f53ef2 100644
--- a/payloads/coreinfo/coreinfo.c
+++ b/payloads/coreinfo/coreinfo.c
@@ -29,6 +29,7 @@ extern struct coreinfo_module pci_module;
 extern struct coreinfo_module coreboot_module;
 extern struct coreinfo_module nvram_module;
 extern struct coreinfo_module bootlog_module;
+extern struct coreinfo_module ramdump_module;
 extern struct coreinfo_module lar_module;
 
 struct coreinfo_module *system_modules[] = {
@@ -41,6 +42,9 @@ struct coreinfo_module *system_modules[] = {
 #ifdef CONFIG_MODULE_NVRAM
 	&nvram_module,
 #endif
+#ifdef CONFIG_MODULE_RAMDUMP
+	&ramdump_module,
+#endif
 };
 
 struct coreinfo_module *coreboot_modules[] = {
diff --git a/payloads/coreinfo/ramdump_module.c b/payloads/coreinfo/ramdump_module.c
new file mode 100644
index 0000000000..16d7e96771
--- /dev/null
+++ b/payloads/coreinfo/ramdump_module.c
@@ -0,0 +1,112 @@
+/*
+ * This file is part of the coreinfo project.
+ *
+ * Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "coreinfo.h"
+
+#ifdef CONFIG_MODULE_RAMDUMP
+
+static s64 cursor = 0;
+static s64 cursor_max = (1 * 1024 * 1024 * 1024); /* Max. 1 GB RAM for now. */
+
+static int ramdump_module_init(void)
+{
+	return 0;
+}
+
+static void dump_ram(WINDOW *win, uint32_t addr, int row, int col)
+{
+	int i, x = 0, y = 0, count = 0;
+	volatile uint8_t *ptr = (void *)(addr);
+
+	mvwprintw(win, 0, col + 54, "RAM address: %10d", addr);
+
+	/* Dump 256 bytes of RAM. */
+	for (i = 1; i < 257; i++) {
+		if (x == 0) {
+			mvwprintw(win, row + y, col - 1, "%08x", addr + 16 * y);
+			mvwaddch(win, row + y, col + 59, (const chtype)"|");
+			mvwaddch(win, row + y, col + 76, (const chtype)"|");
+		}
+		mvwprintw(win, row + y, col + x + 9, "%02x", ptr[i - 1]);
+		mvwprintw(win, row + y, 62 + count++, "%c", ptr[i - 1]);
+		x += 3;
+		if (x == 24)	/* One more space after column/byte 8. */
+			x++;
+		if (i % 16 == 0) {
+			y++;	/* Start a newline after 16 bytes. */
+			x = count = 0;
+		}
+	}
+}
+
+static int ramdump_module_redraw(WINDOW *win)
+{
+	print_module_title(win, "RAM Dump");
+	dump_ram(win, cursor * 256, 2, 2);
+
+	return 0;
+}
+
+static int ramdump_module_handle(int key)
+{
+	switch (key) {
+	case KEY_DOWN:
+		if (cursor == cursor_max)
+			return 0;
+		cursor++;
+		break;
+	case KEY_UP:
+		if (cursor == 0)
+			return 0;
+		cursor--;
+		break;
+	case KEY_NPAGE:
+		if (cursor == cursor_max)
+			return 0;
+		cursor += 4096; /* Jump in 1MB steps. */
+		break;
+	case KEY_PPAGE:
+		if (cursor == 0)
+			return 0;
+		cursor -= 4096; /* Jump in 1MB steps. */
+		break;
+	}
+
+	if (cursor > cursor_max)
+		cursor = cursor_max;
+
+	if (cursor < 0)
+		cursor = 0;
+
+	return 1;
+}
+
+struct coreinfo_module ramdump_module = {
+	.name = "RAM Dump",
+	.init = ramdump_module_init,
+	.redraw = ramdump_module_redraw,
+	.handle = ramdump_module_handle,
+};
+
+#else
+
+struct coreinfo_module ramdump_module = {
+};
+
+#endif