[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-agn-hcmd-check.c

/******************************************************************************
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2008 - 2009 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:
 *  Intel Linux Wireless <ilw@linux.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_priv *priv)
{
	int error = 0;
	int counter = 1;
	struct iwl_rxon_cmd *rxon = &priv->staging_rxon;

	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_WARN(priv, "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_WARN(priv, "check 52 fields %d | %d\n",
				    counter++, error);
		error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
		if (error)
			IWL_WARN(priv, "check 52 CCK %d | %d\n",
				    counter++, error);
	}
	error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
	if (error)
		IWL_WARN(priv, "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_WARN(priv, "check basic rate %d | %d\n", counter++, error);

	error |= (le16_to_cpu(rxon->assoc_id) > 2007);
	if (error)
		IWL_WARN(priv, "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_WARN(priv, "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_WARN(priv, "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_WARN(priv, "check TGG and auto detect %d | %d\n",
			    counter++, error);

	if (error)
		IWL_WARN(priv, "Tuning to channel %d\n",
			    le16_to_cpu(rxon->channel));

	if (error) {
		IWL_ERR(priv, "Not a valid iwl_rxon_assoc_cmd field values\n");
		return -1;
	}
	return 0;
}
Commit	Line	Data
8f5c87dc WT	1	/******************************************************************************
	2	*
	3	* GPL LICENSE SUMMARY
	4	*
01f8162a	5	* Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
8f5c87dc WT	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of version 2 of the GNU General Public License as
	9	* published by the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
	19	* USA
	20	*
	21	* The full GNU General Public License is included in this distribution
	22	* in the file called LICENSE.GPL.
	23	*
	24	* Contact Information:
759ef89f	25	* Intel Linux Wireless <ilw@linux.intel.com>
8f5c87dc WT	26	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	27	*****************************************************************************/
	28
	29	#include <linux/kernel.h>
	30	#include <net/mac80211.h>
	31	#include "iwl-dev.h"
	32	#include "iwl-debug.h"
	33	#include "iwl-commands.h"
	34
	35
	36	/**
	37	* iwl_check_rxon_cmd - validate RXON structure is valid
	38	*
	39	* NOTE: This is really only useful during development and can eventually
	40	* be #ifdef'd out once the driver is stable and folks aren't actively
	41	* making changes
	42	*/
a3139c59	43	int iwl_agn_check_rxon_cmd(struct iwl_priv *priv)
8f5c87dc WT	44	{
	45	int error = 0;
	46	int counter = 1;
a3139c59	47	struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
8f5c87dc WT	48
	49	if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
	50	error \|= le32_to_cpu(rxon->flags &
	51	(RXON_FLG_TGJ_NARROW_BAND_MSK \|
	52	RXON_FLG_RADAR_DETECT_MSK));
	53	if (error)
39aadf8c	54	IWL_WARN(priv, "check 24G fields %d \| %d\n",
8f5c87dc WT	55	counter++, error);
	56	} else {
	57	error \|= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
	58	0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
	59	if (error)
39aadf8c	60	IWL_WARN(priv, "check 52 fields %d \| %d\n",
8f5c87dc WT	61	counter++, error);
	62	error \|= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
	63	if (error)
39aadf8c	64	IWL_WARN(priv, "check 52 CCK %d \| %d\n",
8f5c87dc WT	65	counter++, error);
	66	}
	67	error \|= (rxon->node_addr[0] \| rxon->bssid_addr[0]) & 0x1;
	68	if (error)
39aadf8c	69	IWL_WARN(priv, "check mac addr %d \| %d\n", counter++, error);
8f5c87dc WT	70
	71	/* make sure basic rates 6Mbps and 1Mbps are supported */
	72	error \|= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
	73	((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
	74	if (error)
39aadf8c	75	IWL_WARN(priv, "check basic rate %d \| %d\n", counter++, error);
8f5c87dc WT	76
	77	error \|= (le16_to_cpu(rxon->assoc_id) > 2007);
	78	if (error)
39aadf8c	79	IWL_WARN(priv, "check assoc id %d \| %d\n", counter++, error);
8f5c87dc WT	80
	81	error \|= ((rxon->flags & (RXON_FLG_CCK_MSK \| RXON_FLG_SHORT_SLOT_MSK))
	82	== (RXON_FLG_CCK_MSK \| RXON_FLG_SHORT_SLOT_MSK));
	83	if (error)
39aadf8c	84	IWL_WARN(priv, "check CCK and short slot %d \| %d\n",
8f5c87dc WT	85	counter++, error);
	86
	87	error \|= ((rxon->flags & (RXON_FLG_CCK_MSK \| RXON_FLG_AUTO_DETECT_MSK))
	88	== (RXON_FLG_CCK_MSK \| RXON_FLG_AUTO_DETECT_MSK));
	89	if (error)
39aadf8c	90	IWL_WARN(priv, "check CCK & auto detect %d \| %d\n",
8f5c87dc WT	91	counter++, error);
	92
	93	error \|= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK \|
	94	RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
	95	if (error)
39aadf8c	96	IWL_WARN(priv, "check TGG and auto detect %d \| %d\n",
8f5c87dc WT	97	counter++, error);
	98
	99	if (error)
39aadf8c	100	IWL_WARN(priv, "Tuning to channel %d\n",
8f5c87dc WT	101	le16_to_cpu(rxon->channel));
	102
	103	if (error) {
15b1687c	104	IWL_ERR(priv, "Not a valid iwl_rxon_assoc_cmd field values\n");
8f5c87dc WT	105	return -1;
	106	}
	107	return 0;
	108	}
	109