path: root/drivers/net/wireless/wl12xx/wl1271_acx.c

/*
 * This file is part of wl1271
 *
 * Copyright (C) 2008-2009 Nokia Corporation
 *
 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 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 St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include "wl1271_acx.h"

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/crc7.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>

#include "wl1271.h"
#include "wl12xx_80211.h"
#include "wl1271_reg.h"
#include "wl1271_spi.h"
#include "wl1271_ps.h"

int wl1271_acx_wake_up_conditions(struct wl1271 *wl)
{
	struct acx_wake_up_condition *wake_up;
	int ret;

	wl1271_debug(DEBUG_ACX, "acx wake up conditions");

	wake_up = kzalloc(sizeof(*wake_up), GFP_KERNEL);
	if (!wake_up) {
		ret = -ENOMEM;
		goto out;
	}

	wake_up->wake_up_event = wl->conf.conn.wake_up_event;
	wake_up->listen_interval = wl->conf.conn.listen_interval;

	ret = wl1271_cmd_configure(wl, ACX_WAKE_UP_CONDITIONS,
				   wake_up, sizeof(*wake_up));
	if (ret < 0) {
		wl1271_warning("could not set wake up conditions: %d", ret);
		goto out;
	}

out:
	kfree(wake_up);
	return ret;
}

int wl1271_acx_sleep_auth(struct wl1271 *wl, u8 sleep_auth)
{
	struct acx_sleep_auth *auth;
	int ret;

	wl1271_debug(DEBUG_ACX, "acx sleep auth");

	auth = kzalloc(sizeof(*auth), GFP_KERNEL);
	if (!auth) {
		ret = -ENOMEM;
		goto out;
	}

	auth->sleep_auth = sleep_auth;

	ret = wl1271_cmd_configure(wl, ACX_SLEEP_AUTH, auth, sizeof(*auth));
	if (ret < 0)
		return ret;

out:
	kfree(auth);
	return ret;
}

int wl1271_acx_fw_version(struct wl1271 *wl, char *buf, size_t len)
{
	struct acx_revision *rev;
	int ret;

	wl1271_debug(DEBUG_ACX, "acx fw rev");

	rev = kzalloc(sizeof(*rev), GFP_KERNEL);
	if (!rev) {
		ret = -ENOMEM;
		goto out;
	}

	ret = wl1271_cmd_interrogate(wl, ACX_FW_REV, rev, sizeof(*rev));
	if (ret < 0) {
		wl1271_warning("ACX_FW_REV interrogate failed");
		goto out;
	}

	/* be careful with the buffer sizes */
	strncpy(buf, rev->fw_version, min(len, sizeof(rev->fw_version)));

	/*
	 * if the firmware version string is exactly
	 * sizeof(rev->fw_version) long or fw_len is less than
	 * sizeof(rev->fw_version) it won't be null terminated
	 */
	buf[min(len, sizeof(rev->fw_version)) - 1] = '\0';

out:
	kfree(rev);
	return ret;
}

int wl1271_acx_tx_power(struct wl1271 *wl, int power)
{
	struct acx_current_tx_power *acx;
	int ret;

	wl1271_debug(DEBUG_ACX, "acx dot11_cur_tx_pwr");

	if (power < 0 || power > 25)
		return -EINVAL;

	acx