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>

drivers/net/wireless/iwlwifi/iwl-3945-commands.h

@@ -69,6 +69,12 @@
 #ifndef __iwl_3945_commands_h__
 #define __iwl_3945_commands_h__
 
+/* uCode version contains 4 values: Major/Minor/API/Serial */
+#define IWL_UCODE_MAJOR(ver)	(((ver) & 0xFF000000) >> 24)
+#define IWL_UCODE_MINOR(ver)	(((ver) & 0x00FF0000) >> 16)
+#define IWL_UCODE_API(ver)	(((ver) & 0x0000FF00) >> 8)
+#define IWL_UCODE_SERIAL(ver)	((ver) & 0x000000FF)
+
 enum {
 	REPLY_ALIVE = 0x1,
 	REPLY_ERROR = 0x2,

drivers/net/wireless/iwlwifi/iwl-3945.h

@@ -505,7 +505,7 @@ struct fw_desc {
 
 /* uCode file layout */
 struct iwl3945_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 */
@@ -762,6 +762,8 @@ struct iwl3945_priv {
 	void __iomem *hw_base;
 
 	/* uCode images, save to reload in case of failure */
+	u32 ucode_ver;			/* ucode version, copy of
+					   iwl3945_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 */

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -1575,7 +1575,7 @@ static int iwl_read_ucode(struct iwl_priv *priv)
 	const char *name = priv->cfg->fw_name;
 	u8 *src;
 	size_t len;
-	u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
+	u32 inst_size, data_size, init_size, init_data_size, boot_size;
 
 	/* Ask kernel firmware_class module to get the boot firmware off disk.
 	 * request_firmware() is synchronous, file is in memory on return. */
@@ -1599,14 +1599,20 @@ static int iwl_read_ucode(struct iwl_priv *priv)
 	/* Data from ucode file:  header followed by uCode images */
 	ucode = (void *)ucode_raw->data;
 
-	ver = le32_to_cpu(ucode->ver);
+	priv->ucode_ver = le32_to_cpu(ucode->ver);
 	inst_size = le32_to_cpu(ucode->inst_size);
 	data_size = le32_to_cpu(ucode->data_size);
 	init_size = le32_to_cpu(ucode->init_size);
 	init_data_size = le32_to_cpu(ucode->init_data_size);
 	boot_size = le32_to_cpu(ucode->boot_size);
 
-	IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
+	IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n",
+		       priv->ucode_ver);
+	IWL_DEBUG_INFO("f/w package hdr ucode version = %u.%u.%u.%u\n",
+		       IWL_UCODE_MAJOR(priv->ucode_ver),
+		       IWL_UCODE_MINOR(priv->ucode_ver),
+		       IWL_UCODE_API(priv->ucode_ver),
+		       IWL_UCODE_SERIAL(priv->ucode_ver));
 	IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
 		       inst_size);
 	IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",

drivers/net/wireless/iwlwifi/iwl-commands.h

@@ -69,6 +69,12 @@
 #ifndef __iwl_commands_h__
 #define __iwl_commands_h__
 
+/* uCode version contains 4 values: Major/Minor/API/Serial */
+#define IWL_UCODE_MAJOR(ver)	(((ver) & 0xFF000000) >> 24)
+#define IWL_UCODE_MINOR(ver)	(((ver) & 0x00FF0000) >> 16)
+#define IWL_UCODE_API(ver)	(((ver) & 0x0000FF00) >> 8)
+#define IWL_UCODE_SERIAL(ver)	((ver) & 0x000000FF)
+
 enum {
 	REPLY_ALIVE = 0x1,
 	REPLY_ERROR = 0x2,

drivers/net/wireless/iwlwifi/iwl-dev.h

@@ -462,7 +462,7 @@ struct fw_desc {
 
 /* 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 @@ struct iwl_priv {
 	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 */

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -5302,7 +5302,7 @@ static int iwl3945_read_ucode(struct iwl3945_priv *priv)
 	const char *name = priv->cfg->fw_name;
 	u8 *src;
 	size_t len;
-	u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
+	u32 inst_size, data_size, init_size, init_data_size, boot_size;
 
 	/* Ask kernel firmware_class module to get the boot firmware off disk.
 	 * request_firmware() is synchronous, file is in memory on return. */
@@ -5326,14 +5326,20 @@ static int iwl3945_read_ucode(struct iwl3945_priv *priv)
 	/* Data from ucode file:  header followed by uCode images */
 	ucode = (void *)ucode_raw->data;
 
-	ver = le32_to_cpu(ucode->ver);
+	priv->ucode_ver = le32_to_cpu(ucode->ver);
 	inst_size = le32_to_cpu(ucode->inst_size);
 	data_size = le32_to_cpu(ucode->data_size);
 	init_size = le32_to_cpu(ucode->init_size);
 	init_data_size = le32_to_cpu(ucode->init_data_size);
 	boot_size = le32_to_cpu(ucode->boot_size);
 
-	IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
+	IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n",
+		       priv->ucode_ver);
+	IWL_DEBUG_INFO("f/w package hdr ucode version = %u.%u.%u.%u\n",
+		       IWL_UCODE_MAJOR(priv->ucode_ver),
+		       IWL_UCODE_MINOR(priv->ucode_ver),
+		       IWL_UCODE_API(priv->ucode_ver),
+		       IWL_UCODE_SERIAL(priv->ucode_ver));
 	IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size);
 	IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size);
 	IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size);