path: root/drivers/net/wireless/iwmc3200wifi/commands.c

/*
 * Intel Wireless Multicomm 3200 WiFi driver
 *
 * Copyright (C) 2009 Intel Corporation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * Neither the name of Intel Corporation nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *
 * Intel Corporation <ilw@linux.intel.com>
 * Samuel Ortiz <samuel.ortiz@intel.com>
 * Zhu Yi <yi.zhu@intel.com>
 *
 */

#include <linux/kernel.h>
#include <linux/wireless.h>
#include <linux/etherdevice.h>
#include <linux/ieee80211.h>
#include <linux/sched.h>
#include <linux/slab.h>

#include "iwm.h"
#include "bus.h"
#include "hal.h"
#include "umac.h"
#include "commands.h"
#include "debug.h"

static int iwm_send_lmac_ptrough_cmd(struct iwm_priv *iwm,
				     u8 lmac_cmd_id,
				     const void *lmac_payload,
				     u16 lmac_payload_size,
				     u8 resp)
{
	struct iwm_udma_wifi_cmd udma_cmd = UDMA_LMAC_INIT;
	struct iwm_umac_cmd umac_cmd;
	struct iwm_lmac_cmd lmac_cmd;

	lmac_cmd.id = lmac_cmd_id;

	umac_cmd.id = UMAC_CMD_OPCODE_WIFI_PASS_THROUGH;
	umac_cmd.resp = resp;

	return iwm_hal_send_host_cmd(iwm, &udma_cmd, &umac_cmd, &lmac_cmd,
				     lmac_payload, lmac_payload_size);
}

int iwm_send_wifi_if_cmd(struct iwm_priv *iwm, void *payload, u16 payload_size,
			 bool resp)
{
	struct iwm_umac_wifi_if *hdr = (struct iwm_umac_wifi_if *)payload;
	struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
	struct iwm_umac_cmd umac_cmd;
	int ret;
	u8 oid = hdr->oid;

	if (!test_bit(IWM_STATUS_READY, &iwm->status)) {
		IWM_ERR(iwm, "Interface is not ready yet");
		return -EAGAIN;
	}

	umac_cmd.id = UMAC_CMD_OPCODE_WIFI_IF_WRAPPER;
	umac_cmd.resp = resp;

	ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
				    payload, payload_size);

	if (resp) {
		ret = wait_event_interruptible_timeout(iwm->wifi_ntfy_queue,
				   test_and_clear_bit(oid, &iwm->wifi_ntfy[0]),
				   3 * HZ);

		return ret ? 0 : -EBUSY;
	}

	return ret;
}

static int modparam_wiwi = COEX_MODE_CM;
module_param_named(wiwi, modparam_wiwi, int, 0644);
MODULE_PARM_DESC(wiwi, "Wifi-WiMAX coexistence: 1=SA, 2=XOR, 3=CM (default)");

static struct coex_event iwm_sta_xor_prio_tbl[COEX_EVENTS_NUM] =
{
	{4, 3, 0, COEX_UNASSOC_IDLE_FLAGS},
	{4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
	{4, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
	{4, 3, 0, COEX_CALIBRATION_FLAGS},
	{4, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
	{4, 3, 0, COEX_CONNECTION_ESTAB_FLAGS},
	{4, 3, 0, COEX_ASSOCIATED_IDLE_FLAGS},
	{4, 3, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
	{4, 3, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
	{4, 3, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
	{6, 3, 0, COEX_XOR_RF_ON_FLAGS},
	{4, 3, 0, COEX_RF_OFF_FLAGS},
	{6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
	{4, 3, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
	{4, 3, 0, COEX_RSRVD1_FLAGS},
	{4, 3, 0, COEX_RSRVD2_FLAGS}
};

static struct coex_event iwm_sta_cm_prio_tbl[COEX_EVENTS_NUM] =
{
	{1, 1, 0, COEX_UNASSOC_IDLE_FLAGS},
	{4, 4, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
	{3, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
	{6, 6, 0, COEX_CALIBRATION_FLAGS},
	{3, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
	{6, 5, 0, COEX_CONNECTION_ESTAB_FLAGS},
	{4, 4, 0, COEX_ASSOCIATED_IDLE_FLAGS},
	{4, 4, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
	{4, 4, 0, COEX_ASSOC_AUTO_SCAN_FLAGS