1 files changed, 108 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd-check.c b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd-check.c
new file mode 100644
index 000000000000..c50494a74f67
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd-check.c
@@ -0,0 +1,108 @@
+/******************************************************************************
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Tomas Winkler <tomas.winkler@intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <net/mac80211.h>
+#include "iwl-dev.h"
+#include "iwl-debug.h"
+#include "iwl-commands.h"
+
+
+/**
+ * iwl_check_rxon_cmd - validate RXON structure is valid
+ *
+ * NOTE:  This is really only useful during development and can eventually
+ * be #ifdef'd out once the driver is stable and folks aren't actively
+ * making changes
+ */
+int iwl_agn_check_rxon_cmd(struct iwl_rxon_cmd *rxon)
+{
+        int error = 0;
+        int counter = 1;
+
+        if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
+                error |= le32_to_cpu(rxon->flags &
+                                (RXON_FLG_TGJ_NARROW_BAND_MSK |
+                                 RXON_FLG_RADAR_DETECT_MSK));
+                if (error)
+                        IWL_WARNING("check 24G fields %d | %d\n",
+                                    counter++, error);
+        } else {
+                error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
+                                0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
+                if (error)
+                        IWL_WARNING("check 52 fields %d | %d\n",
+                                    counter++, error);
+                error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
+                if (error)
+                        IWL_WARNING("check 52 CCK %d | %d\n",
+                                    counter++, error);
+        }
+        error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
+        if (error)
+                IWL_WARNING("check mac addr %d | %d\n", counter++, error);
+
+        /* make sure basic rates 6Mbps and 1Mbps are supported */
+        error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
+                  ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
+        if (error)
+                IWL_WARNING("check basic rate %d | %d\n", counter++, error);
+
+        error |= (le16_to_cpu(rxon->assoc_id) > 2007);
+        if (error)
+                IWL_WARNING("check assoc id %d | %d\n", counter++, error);
+
+        error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
+                        == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
+        if (error)
+                IWL_WARNING("check CCK and short slot %d | %d\n",
+                            counter++, error);
+
+        error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
+                        == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
+        if (error)
+                IWL_WARNING("check CCK & auto detect %d | %d\n",
+                            counter++, error);
+
+        error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
+                        RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
+        if (error)
+                IWL_WARNING("check TGG and auto detect %d | %d\n",
+                            counter++, error);
+
+        if (error)
+                IWL_WARNING("Tuning to channel %d\n",
+                            le16_to_cpu(rxon->channel));
+
+        if (error) {
+                IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
+                return -1;
+        }
+        return 0;
+}
+