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authorUwe Hermann <uwe@hermann-uwe.de>2009-07-07 15:10:13 +0000
committerUwe Hermann <uwe@hermann-uwe.de>2009-07-07 15:10:13 +0000
commit941c1fd52a96fd3e238d1798127a137e4c4eb659 (patch)
treee1c955c516869087df95a4bde873d9aad6bcea35 /payloads/coreinfo/cbfs_module.c
parent280df106c0711235bfc891abfbab0020d2d0266a (diff)
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Add initial support for a CBFS module for coreinfo.
Currently it prints a list of components in CBFS and their size/type. There's a bunch of additional output that could be printed, but that's for another patch. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4404 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'payloads/coreinfo/cbfs_module.c')
-rw-r--r--payloads/coreinfo/cbfs_module.c221
1 files changed, 221 insertions, 0 deletions
diff --git a/payloads/coreinfo/cbfs_module.c b/payloads/coreinfo/cbfs_module.c
new file mode 100644
index 000000000..274356dd2
--- /dev/null
+++ b/payloads/coreinfo/cbfs_module.c
@@ -0,0 +1,221 @@
+/*
+ * This file is part of the coreinfo project.
+ *
+ * Copyright (C) 2009 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"
+#include "arch/endian.h"
+
+#ifdef CONFIG_MODULE_CBFS
+
+#define ALIGN(_v, _a) (((_v) + ((_a) - 1)) & ~((_a) - 1))
+
+#define HEADER_MAGIC 0x4F524243
+#define HEADER_ADDR 0xfffffffc
+#define LARCHIVE_MAGIC 0x455649484352414cLL /* "LARCHIVE" */
+
+#define COMPONENT_DELETED 0x00
+#define COMPONENT_STAGE 0x10
+#define COMPONENT_PAYLOAD 0x20
+#define COMPONENT_OPTIONROM 0x30
+#define COMPONENT_NULL 0xffffffff
+
+struct cbheader {
+ u32 magic;
+ u32 version;
+ u32 romsize;
+ u32 bootblocksize;
+ u32 align;
+ u32 offset;
+ u32 pad[2];
+} __attribute__ ((packed));
+
+struct cbfile {
+ u64 magic;
+ u32 len;
+ u32 type;
+ u32 checksum;
+ u32 offset;
+ char filename[0];
+} __attribute__ ((packed));
+
+static int filecount = 0, selected = 0;
+static char **filenames;
+static struct cbheader *header = NULL;
+
+static struct cbfile *getfile(struct cbfile *f)
+{
+ while (1) {
+ if (f < (struct cbfile *)(0xffffffff - ntohl(header->romsize)))
+ return NULL;
+ if (f->magic == 0)
+ return NULL;
+ if (f->magic == LARCHIVE_MAGIC)
+ return f;
+ f = (void *)f + ntohl(header->align);
+ }
+}
+
+static struct cbfile *firstfile(void)
+{
+ return getfile((void *)(0 - ntohl(header->romsize) +
+ ntohl(header->offset)));
+}
+
+static struct cbfile *nextfile(struct cbfile *f)
+{
+ f = (void *)f + ALIGN(ntohl(f->len) + ntohl(f->offset),
+ ntohl(header->align));
+ return getfile(f);
+}
+
+static struct cbfile *findfile(const char *filename)
+{
+ struct cbfile *f;
+ for (f = firstfile(); f; f = nextfile(f)) {
+ if (strcmp(filename, f->filename) == 0)
+ return f;
+ }
+ return NULL;
+}
+
+static int cbfs_module_init(void)
+{
+ struct cbfile *f;
+ int index = 0;
+
+ header = *(void **)HEADER_ADDR;
+ if (header->magic != ntohl(HEADER_MAGIC)) {
+ header = NULL;
+ return 0;
+ }
+
+ for (f = firstfile(); f; f = nextfile(f))
+ filecount++;
+
+ filenames = malloc(filecount * sizeof(char *));
+ if (filenames == NULL)
+ return 0;
+
+ for (f = firstfile(); f; f = nextfile(f))
+ filenames[index++] = strdup((const char *)f->filename);
+
+ return 0;
+}
+
+static int cbfs_module_redraw(WINDOW * win)
+{
+ struct cbfile *f;
+ int i, row = 2;
+
+ print_module_title(win, "CBFS Listing");
+
+ if (!header) {
+ mvwprintw(win, 11, 61 / 2, "Bad or missing CBFS header");
+ return 0;
+ }
+
+ /* Draw a line down the middle. */
+ for (i = 2; i < 21; i++)
+ mvwaddch(win, i, 30, ACS_VLINE);
+
+ /* Draw the names down the left side. */
+ for (i = 0; i < filecount; i++) {
+ if (i == selected)
+ wattrset(win, COLOR_PAIR(3) | A_BOLD);
+ else
+ wattrset(win, COLOR_PAIR(2));
+ if (i == filecount - 1)
+ mvwprintw(win, 2 + i, 1, "<free space>");
+ else
+ mvwprintw(win, 2 + i, 1, "%.25s", filenames[i]);
+ }
+
+ f = findfile(filenames[selected]);
+ if (!f) {
+ mvwprintw(win, 11, 32, "ERROR: CBFS component not found");
+ return 0;
+ }
+
+ wattrset(win, COLOR_PAIR(2));
+
+ /* mvwprintw(win, row++, 32, "Offset: 0x%x", f->offset); *//* FIXME */
+ mvwprintw(win, row, 32, "Type: ");
+ switch (ntohl(f->type)) {
+ case COMPONENT_STAGE:
+ mvwprintw(win, row++, 38, "stage");
+ break;
+ case COMPONENT_PAYLOAD:
+ mvwprintw(win, row++, 38, "payload");
+ break;
+ case COMPONENT_OPTIONROM:
+ mvwprintw(win, row++, 38, "optionrom");
+ break;
+ case COMPONENT_NULL:
+ mvwprintw(win, row++, 38, "free");
+ break;
+ case COMPONENT_DELETED:
+ mvwprintw(win, row++, 38, "deleted");
+ break;
+ default:
+ mvwprintw(win, row++, 38, "Unknown (0x%x)", ntohl(f->type));
+ break;
+ }
+ mvwprintw(win, row++, 32, "Size: %d", ntohl(f->len));
+ mvwprintw(win, row++, 32, "Checksum: 0x%x", ntohl(f->checksum));
+
+ return 0;
+}
+
+static int cbfs_module_handle(int key)
+{
+ int ret = 0;
+
+ if (filecount == 0)
+ return 0;
+
+ switch (key) {
+ case KEY_DOWN:
+ if (selected + 1 < filecount) {
+ selected++;
+ ret = 1;
+ }
+ break;
+ case KEY_UP:
+ if (selected > 0) {
+ selected--;
+ ret = 1;
+ }
+ break;
+ }
+
+ return ret;
+}
+
+struct coreinfo_module cbfs_module = {
+ .name = "CBFS",
+ .init = cbfs_module_init,
+ .redraw = cbfs_module_redraw,
+ .handle = cbfs_module_handle
+};
+
+#else
+
+struct coreinfo_module cbfs_module = {
+};
+
+#endif