iwlwifi: Handle new firmware file with ucode build number in header

Adding new API version to account for change to ucode file format.  New
header includes the build number of the ucode.  This build number is the
SVN revision thus allowing for exact correlation to the code that
generated it.

The header adds the build number so that older ucode images can also be
enhanced to include the build in the future.

some cleanup in iwl_read_ucode needed to ensure old header not used and
reduce unnecessary references through pointer with the data is already
in heap variable.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 1227ed2960fb..14a47c0a1583 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -2786,11 +2786,50 @@ static int iwl3945_load_bsm(struct iwl_priv *priv)
         return 0;
 }
 
+#define IWL3945_UCODE_GET(item)                                         \
+static u32 iwl3945_ucode_get_##item(const struct iwl_ucode_header *ucode,\
+                                    u32 api_ver)                        \
+{                                                                       \
+        return le32_to_cpu(ucode->u.v1.item);                           \
+}
+
+static u32 iwl3945_ucode_get_header_size(u32 api_ver)
+{
+        return UCODE_HEADER_SIZE(1);
+}
+static u32 iwl3945_ucode_get_build(const struct iwl_ucode_header *ucode,
+                                   u32 api_ver)
+{
+        return 0;
+}
+static u8 *iwl3945_ucode_get_data(const struct iwl_ucode_header *ucode,
+                                  u32 api_ver)
+{
+        return (u8 *) ucode->u.v1.data;
+}
+
+IWL3945_UCODE_GET(inst_size);
+IWL3945_UCODE_GET(data_size);
+IWL3945_UCODE_GET(init_size);
+IWL3945_UCODE_GET(init_data_size);
+IWL3945_UCODE_GET(boot_size);
+
 static struct iwl_hcmd_ops iwl3945_hcmd = {
         .rxon_assoc = iwl3945_send_rxon_assoc,
         .commit_rxon = iwl3945_commit_rxon,
 };
 
+static struct iwl_ucode_ops iwl3945_ucode = {
+        .get_header_size = iwl3945_ucode_get_header_size,
+        .get_build = iwl3945_ucode_get_build,
+        .get_inst_size = iwl3945_ucode_get_inst_size,
+        .get_data_size = iwl3945_ucode_get_data_size,
+        .get_init_size = iwl3945_ucode_get_init_size,
+        .get_init_data_size = iwl3945_ucode_get_init_data_size,
+        .get_boot_size = iwl3945_ucode_get_boot_size,
+        .get_data = iwl3945_ucode_get_data,
+};
+
 static struct iwl_lib_ops iwl3945_lib = {
         .txq_attach_buf_to_tfd = iwl3945_hw_txq_attach_buf_to_tfd,
         .txq_free_tfd = iwl3945_hw_txq_free_tfd,
@@ -2831,6 +2870,7 @@ static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
 };
 
 static struct iwl_ops iwl3945_ops = {
+        .ucode = &iwl3945_ucode,
         .lib = &iwl3945_lib,
         .hcmd = &iwl3945_hcmd,
         .utils = &iwl3945_hcmd_utils,