Give layouts their own type
Introduce `struct flashrom_layout` and refactor layout.c a little, so
we can reuse the layout from there and have other sources of layouts
beside it.
I didn't want to clutter up flash.h any more. So things went into a new
layout.h.
Change-Id: Icea1a58c283131cc9c5fde6f16d783538dc1a4c7
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/17944
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
diff --git a/layout.c b/layout.c
index f71eeaa..3d09011 100644
--- a/layout.c
+++ b/layout.c
@@ -25,25 +25,21 @@
#include <limits.h>
#include "flash.h"
#include "programmer.h"
+#include "layout.h"
-#define MAX_ROMLAYOUT 32
-
-typedef struct {
- chipoff_t start;
- chipoff_t end;
- unsigned int included;
- char name[256];
-} romentry_t;
-
-/* rom_entries store the entries specified in a layout file and associated run-time data */
-static romentry_t rom_entries[MAX_ROMLAYOUT];
-static int num_rom_entries = 0; /* the number of successfully parsed rom_entries */
+struct romentry entries[MAX_ROMLAYOUT];
+static struct flashrom_layout layout = { entries, 0 };
/* include_args holds the arguments specified at the command line with -i. They must be processed at some point
- * so that desired regions are marked as "included" in the rom_entries list. */
+ * so that desired regions are marked as "included" in the layout. */
static char *include_args[MAX_ROMLAYOUT];
static int num_include_args = 0; /* the number of valid include_args. */
+const struct flashrom_layout *get_global_layout(void)
+{
+ return &layout;
+}
+
#ifndef __LIBPAYLOAD__
int read_romlayout(const char *name)
{
@@ -62,13 +58,13 @@
while (!feof(romlayout)) {
char *tstr1, *tstr2;
- if (num_rom_entries >= MAX_ROMLAYOUT) {
+ if (layout.num_entries >= MAX_ROMLAYOUT) {
msg_gerr("Maximum number of ROM images (%i) in layout "
"file reached.\n", MAX_ROMLAYOUT);
(void)fclose(romlayout);
return 1;
}
- if (2 != fscanf(romlayout, "%255s %255s\n", tempstr, rom_entries[num_rom_entries].name))
+ if (2 != fscanf(romlayout, "%255s %255s\n", tempstr, layout.entries[layout.num_entries].name))
continue;
#if 0
// fscanf does not like arbitrary comments like that :( later
@@ -83,16 +79,16 @@
(void)fclose(romlayout);
return 1;
}
- rom_entries[num_rom_entries].start = strtol(tstr1, (char **)NULL, 16);
- rom_entries[num_rom_entries].end = strtol(tstr2, (char **)NULL, 16);
- rom_entries[num_rom_entries].included = 0;
- num_rom_entries++;
+ layout.entries[layout.num_entries].start = strtol(tstr1, (char **)NULL, 16);
+ layout.entries[layout.num_entries].end = strtol(tstr2, (char **)NULL, 16);
+ layout.entries[layout.num_entries].included = 0;
+ layout.num_entries++;
}
- for (i = 0; i < num_rom_entries; i++) {
+ for (i = 0; i < layout.num_entries; i++) {
msg_gdbg("romlayout %08x - %08x named %s\n",
- rom_entries[i].start,
- rom_entries[i].end, rom_entries[i].name);
+ layout.entries[i].start,
+ layout.entries[i].end, layout.entries[i].name);
}
(void)fclose(romlayout);
@@ -140,13 +136,13 @@
{
int i;
- if (num_rom_entries == 0)
+ if (layout.num_entries == 0)
return -1;
msg_gspew("Looking for region \"%s\"... ", name);
- for (i = 0; i < num_rom_entries; i++) {
- if (!strcmp(rom_entries[i].name, name)) {
- rom_entries[i].included = 1;
+ for (i = 0; i < layout.num_entries; i++) {
+ if (!strcmp(layout.entries[i].name, name)) {
+ layout.entries[i].included = 1;
msg_gspew("found.\n");
return i;
}
@@ -167,7 +163,7 @@
return 0;
/* User has specified an area, but no layout file is loaded. */
- if (num_rom_entries == 0) {
+ if (layout.num_entries == 0) {
msg_gerr("Region requested (with -i \"%s\"), "
"but no layout data is available.\n",
include_args[0]);
@@ -200,22 +196,22 @@
}
num_include_args = 0;
- for (i = 0; i < num_rom_entries; i++) {
- rom_entries[i].included = 0;
+ for (i = 0; i < layout.num_entries; i++) {
+ layout.entries[i].included = 0;
}
- num_rom_entries = 0;
+ layout.num_entries = 0;
}
-romentry_t *get_next_included_romentry(unsigned int start)
+struct romentry *get_next_included_romentry(unsigned int start)
{
int i;
unsigned int best_start = UINT_MAX;
- romentry_t *best_entry = NULL;
- romentry_t *cur;
+ struct romentry *best_entry = NULL;
+ struct romentry *cur;
/* First come, first serve for overlapping regions. */
- for (i = 0; i < num_rom_entries; i++) {
- cur = &rom_entries[i];
+ for (i = 0; i < layout.num_entries; i++) {
+ cur = &layout.entries[i];
if (!cur->included)
continue;
/* Already past the current entry? */
@@ -240,16 +236,16 @@
int ret = 0;
int i;
- for (i = 0; i < num_rom_entries; i++) {
- if (rom_entries[i].start >= total_size || rom_entries[i].end >= total_size) {
+ for (i = 0; i < layout.num_entries; i++) {
+ if (layout.entries[i].start >= total_size || layout.entries[i].end >= total_size) {
msg_gwarn("Warning: Address range of region \"%s\" exceeds the current chip's "
- "address space.\n", rom_entries[i].name);
- if (rom_entries[i].included)
+ "address space.\n", layout.entries[i].name);
+ if (layout.entries[i].included)
ret = 1;
}
- if (rom_entries[i].start > rom_entries[i].end) {
+ if (layout.entries[i].start > layout.entries[i].end) {
msg_gerr("Error: Size of the address range of region \"%s\" is not positive.\n",
- rom_entries[i].name);
+ layout.entries[i].name);
ret = 1;
}
}
@@ -281,7 +277,7 @@
int build_new_image(struct flashctx *flash, bool oldcontents_valid, uint8_t *oldcontents, uint8_t *newcontents)
{
unsigned int start = 0;
- romentry_t *entry;
+ struct romentry *entry;
unsigned int size = flash->chip->total_size * 1024;
/* If no regions were specified for inclusion, assume