summaryrefslogtreecommitdiff
path: root/payloads
diff options
context:
space:
mode:
authorPatrick Georgi <patrick.georgi@secunet.com>2012-01-16 15:39:57 +0100
committerPatrick Georgi <patrick@georgi-clan.de>2012-02-03 13:22:48 +0100
commit0a5951110812ad83abc6a61db992050a39209b8d (patch)
tree05370cb4afc38e0be40eddc0a839983284cbba66 /payloads
parent56f468d29b4beab59f5a751d8d30364962298328 (diff)
downloadcoreboot-0a5951110812ad83abc6a61db992050a39209b8d.tar.xz
libpayload: Add iterators for CMOS variables
Provide functions that pick the first CMOS variable defined in the cmos layout, and from there, the next one. Change-Id: Ie98146de7f6273089fc6fc0b232a4b94337cf8a3 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/587 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'payloads')
-rw-r--r--payloads/libpayload/drivers/options.c14
-rw-r--r--payloads/libpayload/include/libpayload.h2
2 files changed, 16 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/options.c b/payloads/libpayload/drivers/options.c
index 1b98cda721..10d165ecc7 100644
--- a/payloads/libpayload/drivers/options.c
+++ b/payloads/libpayload/drivers/options.c
@@ -171,6 +171,20 @@ static struct cb_cmos_entries *lookup_cmos_entry(struct cb_cmos_option_table *op
return NULL;
}
+struct cb_cmos_entries *first_cmos_entry(struct cb_cmos_option_table *option_table)
+{
+ return lookup_cmos_entry(option_table, "");
+}
+
+struct cb_cmos_entries *next_cmos_entry(struct cb_cmos_entries *cmos_entry)
+{
+ struct cb_cmos_entries *next = (struct cb_cmos_entries*)((unsigned char *)cmos_entry + cmos_entry->size);
+ if (next->tag == CB_TAG_OPTION)
+ return next;
+ else
+ return NULL;
+}
+
/* Either value or text must be NULL. Returns the field that matches "the other" for a given config_id */
static struct cb_cmos_enums *lookup_cmos_enum_core(struct cb_cmos_option_table *option_table, int config_id, u8 *value, char *text)
{
diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h
index 488ad488f8..53d6672a19 100644
--- a/payloads/libpayload/include/libpayload.h
+++ b/payloads/libpayload/include/libpayload.h
@@ -206,6 +206,8 @@ struct cb_cmos_option_table *get_system_option_table(void);
int options_checksum_valid(const struct nvram_accessor *nvram);
void fix_options_checksum_with(const struct nvram_accessor *nvram);
void fix_options_checksum(void);
+struct cb_cmos_entries *first_cmos_entry(struct cb_cmos_option_table *option_table);
+struct cb_cmos_entries *next_cmos_entry(struct cb_cmos_entries *cur);
int get_option_with(const struct nvram_accessor *nvram, struct cb_cmos_option_table *option_table, void *dest, char *name);
int get_option_from(struct cb_cmos_option_table *option_table, void *dest, char *name);
int get_option(void *dest, char *name);