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>

6 files changed, 36 insertions, 8 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-commands.h b/drivers/net/wireless/iwlwifi/iwl-3945-commands.h
index 735891a768a2..daf99ea88e90 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-commands.h
+++ b/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,
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index 2a924c10ff93..972c4542e5bc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/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 */
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index e8368b69d8cd..5912cdec33a7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/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",
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 9c786db6f90b..528bcab49d13 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/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,
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 5f6805bfec3f..a19fbb5eaae4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/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 */
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 12ff1121e6dc..03ff87fbe924 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/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);