iwlwifi: store ucode version number

We store the ucode version number as part of
iwl_priv/iwl3945_priv. This enables us to determine
if particular ucode has support for features in order
to have driver support more than one ucode API.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 5f6805b..a19fbb5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -462,7 +462,7 @@
 
 /* uCode file layout */
 struct iwl_ucode {
-	__le32 ver;		/* major/minor/subminor */
+	__le32 ver;		/* major/minor/API/serial */
 	__le32 inst_size;	/* bytes of runtime instructions */
 	__le32 data_size;	/* bytes of runtime data */
 	__le32 init_size;	/* bytes of initialization instructions */
@@ -843,6 +843,8 @@
 	u8   rev_id;
 
 	/* uCode images, save to reload in case of failure */
+	u32 ucode_ver;			/* version of ucode, copy of
+					   iwl_ucode.ver */
 	struct fw_desc ucode_code;	/* runtime inst */
 	struct fw_desc ucode_data;	/* runtime data original */
 	struct fw_desc ucode_data_backup;	/* runtime data save/restore */