/*
* This file is part of wl1271
*
* Copyright (C) 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 <linux/module.h>
#include <linux/platform_device.h>
#include <linux/crc7.h>
#include <linux/spi/spi.h>
#include <linux/etherdevice.h>
#include "wl1271.h"
#include "wl1271_reg.h"
#include "wl1271_spi.h"
#include "wl1271_acx.h"
#include "wl12xx_80211.h"
#include "wl1271_cmd.h"
/*
* send command to firmware
*
* @wl: wl struct
* @id: command id
* @buf: buffer containing the command, must work with dma
* @len: length of the buffer
*/
int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len)
{
struct wl1271_cmd_header *cmd;
unsigned long timeout;
u32 intr;
int ret = 0;
cmd = buf;
cmd->id = id;
cmd->status = 0;
WARN_ON(len % 4 != 0);
wl1271_spi_write(wl, wl->cmd_box_addr, buf, len, false);
wl1271_spi_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
intr = wl1271_spi_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
if (time_after(jiffies, timeout)) {
wl1271_error("command complete timeout");
ret = -ETIMEDOUT;
goto out;
}
msleep(1);
intr = wl1271_spi_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
}
wl1271_spi_write32(wl, ACX_REG_INTERRUPT_ACK,
WL1271_ACX_INTR_CMD_COMPLETE);
out:
return ret;
}
int wl1271_cmd_cal_channel_tune(struct wl1271 *wl)
{
struct wl1271_cmd_cal_channel_tune *cmd;
int ret = 0;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd)
return -ENOMEM;
cmd->test.id = TEST_CMD_CHANNEL_TUNE;
cmd->band = WL1271_CHANNEL_TUNE_BAND_2_4;
/* set up any channel, 7 is in the middle of the range */
cmd->channel = 7;
ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
if (ret < 0)
wl1271_warning("TEST_CMD_CHANNEL_TUNE failed");
kfree(cmd);
return ret;
}
int wl1271_cmd_cal_update_ref_point(struct wl1271 *wl)
{
struct wl1271_cmd_cal_update_ref_point *cmd;
int ret = 0;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd)
return -ENOMEM;
cmd->test.id = TEST_CMD_UPDATE_PD_REFERENCE_POINT;
/* FIXME: still waiting for the correct values */
cmd->ref_power = 0;
cmd->ref_detector = 0;
cmd->sub_band = WL1271_PD_REFERENCE_POINT_BAND_B_G;
ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
if (ret < 0)
wl1271_warning("TEST_CMD_UPDATE_PD_REFERENCE_POINT failed");
kfree(cmd);
return ret;
}
int wl1271_cmd_cal_p2g(struct wl1271 *wl)
{
struct wl1271_cmd_cal_p2g *cmd;
int ret = 0;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd)
return -ENOMEM;
cmd->test.id = TEST_CMD_P2G_CAL;
cmd->sub_band_mask = WL1271_CAL_P2G_BAND_B_G;
ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
if (ret < 0)
wl1271_warning("TEST_CMD_P2G_CAL failed");
kfree(cmd);
return ret;
}
int wl1271_cmd_cal(struct wl1271 *wl)
{
/*
* FIXME: we must make sure that we're not sleeping when calibration
* is done
*/
int ret;
wl1271_notice("performing tx calibration");
ret = wl1271_cmd_cal_channel_tune(wl);
if (ret < 0)
return ret;
ret = wl1271_cmd_cal_update_ref_point(wl);
if (ret < 0)
return ret;
ret = wl1271_cmd_cal_p2g(wl);
if (ret < 0)
return ret;
return ret;
}
int wl1271_cmd_join(struct wl1271 *wl)
{
static bool do_cal = true;
struct wl1271_cmd_join *join;
int ret, i;
u8 *bssid;
/* FIXME: remove when we get calibration from the factory */
if (do_cal) {
ret = wl1271_cmd_cal(wl);
if (ret < 0)
wl1271_warning("couldn't calibrate");
else
do_cal = false;
}
/* FIXME: This is a workaround, because with the current stack, we
* cannot know when we have disassociated. So, if we have already
* joined, we disconnect before joining again. */
if (wl->joined) {
ret = wl1271_cmd_disconnect(wl);
if (ret < 0) {
wl1271_error("failed to disconnect before rejoining");
goto out;
}
wl->joined = false;
}
join = kzalloc(sizeof(*join), GFP_KERNEL);
if (!join) {
ret = -ENOMEM;
goto out;
}
wl1271_debug(DEBUG_CMD, "cmd join");
/* Reverse order BSSID */
bssid = (u8 *) &join->bssid_lsb;
for (i = 0; i < ETH_ALEN; i++)
bssid[i] = wl->bssid[ETH_ALEN - i - 1];
join->rx_config_options = wl->rx_config;
join->rx_filter_options = wl->rx_filter;
/*
* FIXME: disable temporarily all filters because after commit
* 9cef8737 "mac80211: fix managed mode BSSID handling" broke
* association. The filter logic needs to be implemented properly
* and once that is done, this hack can be removed.
*/
join->rx_config_options = 0;
join->rx_filter_options = WL1271_DEFAULT_RX_FILTER;
join->basic_rate_set = CONF_HW_BIT_RATE_1MBPS | CONF_HW_BIT_RATE_2MBPS |
CONF_HW_BIT_RATE_5_5MBPS | CONF_HW_BIT_RATE_11MBPS;
join->beacon_interval = WL1271_DEFAULT_BEACON_INT;
join->dtim_interval = WL1271_DEFAULT_DTIM_PERIOD;
join->bss_type = wl->bss_type;
join->channel = wl->channel;
join->ssid_len = wl->ssid_len;
memcpy(join->ssid, wl->ssid, wl->ssid_len);
join->ctrl = WL1271_JOIN_CMD_CTRL_TX_FLUSH;
/* increment the session counter */
wl->session_counter++;
if (wl->session_counter >= SESSION_COUNTER_MAX)
wl->session_counter = 0;
join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
/* reset TX security counters */
wl->tx_security_last_seq = 0;
wl->tx_security_seq_16 = 0;
wl->tx_security_seq_32 = 0;
ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join));
if (ret < 0) {
wl1271_error("failed to initiate cmd join");
goto out_free;
}
wl->joined = true;
/*
* ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
* simplify locking we just sleep instead, for now
*/
msleep(10);
out_free:
kfree(join);
out:
return ret;
}
/**
* send test command to firmware
*
* @wl: wl struct
* @buf: buffer containing the command, with all headers, must work with dma
* @len: length of the buffer
* @answer: is answer needed
*/
int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
{
int ret;
wl1271_debug(DEBUG_CMD, "cmd test");
ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len);
if (ret < 0) {
wl1271_warning("TEST command failed");
return ret;
}
if (answer) {
struct wl1271_command *cmd_answer;
/*
* The test command got in, we can read the answer.
* The answer would be a wl1271_command, where the
* parameter array contains the actual answer.
*/
wl1271_spi_read(wl, wl->cmd_box_addr, buf, buf_len, false);
cmd_answer = buf;
if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
wl1271_error("TEST command answer error: %d",
cmd_answer->header.status);
}
return 0;
}
/**
* read acx from firmware
*
* @wl: wl struct
* @id: acx id
* @buf: buffer for the response, including all headers, must work with dma
* @len: lenght of buf
*/
int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
{
struct acx_header *acx = buf;
int ret;
wl1271_debug(DEBUG_CMD, "cmd interrogate");
acx->id = id;
/* payload length, does not include any headers */
acx->len = len - sizeof(*acx);
ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx));
if (ret < 0) {
wl1271_error("INTERROGATE command failed");
goto out;
}
/* the interrogate command got in, we can read the answer */
wl1271_spi_read(wl, wl->cmd_box_addr, buf, len, false);
acx = buf;
if (acx->cmd.status != CMD_STATUS_SUCCESS)
wl1271_error("INTERROGATE command error: %d",
acx->cmd.status);
out:
return ret;
}
/**
* write acx value to firmware
*
* @wl: wl struct
* @id: acx id
* @buf: buffer containing acx, including all headers, must work with dma
* @len: length of buf
*/
int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
{
struct acx_header *acx = buf;
int ret;
wl1271_debug(DEBUG_CMD, "cmd configure");
acx->id = id;
/* payload length, does not include any headers */
acx->len = len - sizeof(*acx);
ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len);
if (ret < 0) {
wl1271_warning("CONFIGURE command NOK");
return ret;
}
return 0;
}
int wl1271_cmd_data_path(struct wl1271 *wl, u8 channel, bool enable)
{
struct cmd_enabledisable_path *cmd;
int ret;
u16 cmd_rx, cmd_tx;
wl1271_debug(DEBUG_CMD, "cmd data path");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->channel = channel;
if (enable) {
cmd_rx = CMD_ENABLE_RX;
cmd_tx = CMD_ENABLE_TX;
} else {
cmd_rx = CMD_DISABLE_RX;
cmd_tx = CMD_DISABLE_TX;
}
ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd));
if (ret < 0) {
wl1271_error("rx %s cmd for channel %d failed",
enable ? "start" : "stop", channel);
goto out;
}
wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
enable ? "start" : "stop", channel);
ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd));
if (ret < 0) {
wl1271_error("tx %s cmd for channel %d failed",
enable ? "start" : "stop", channel);
return ret;
}
wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
enable ? "start" : "stop", channel);
out:
kfree(cmd);
return ret;
}
int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode)
{
struct wl1271_cmd_ps_params *ps_params = NULL;
int ret = 0;
/* FIXME: this should be in ps.c */
ret = wl1271_acx_wake_up_conditions(wl);
if (ret < 0) {
wl1271_error("couldn't set wake up conditions");
goto out;
}
wl1271_debug(DEBUG_CMD, "cmd set ps mode");
ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
if (!ps_params) {
ret = -ENOMEM;
goto out;
}
ps_params->ps_mode = ps_mode;
ps_params->send_null_data = 1;
ps_params->retries = 5;
ps_params->hang_over_period = 128;
ps_params->null_data_rate = 1; /* 1 Mbps */
ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
sizeof(*ps_params));
if (ret < 0) {
wl1271_error("cmd set_ps_mode failed");
goto out;
}
out:
kfree(ps_params);
return ret;
}
int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
size_t len)
{
struct cmd_read_write_memory *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd read memory");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
WARN_ON(len > MAX_READ_SIZE);
len = min_t(size_t, len, MAX_READ_SIZE);
cmd->addr = addr;
cmd->size = len;
ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd));
if (ret < 0) {
wl1271_error("read memory command failed: %d", ret);
goto out;
}
/* the read command got in, we can now read the answer */
wl1271_spi_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd), false);
if (cmd->header.status != CMD_STATUS_SUCCESS)
wl1271_error("error in read command result: %d",
cmd->header.status);
memcpy(answer, cmd->value, len);
out:
kfree(cmd);
return ret;
}
int wl1271_cmd_scan(struct wl1271 *wl, u8 *ssid, size_t len,
u8 active_scan, u8 high_prio, u8 num_channels,
u8 probe_requests)
{
struct wl1271_cmd_trigger_scan_to *trigger = NULL;
struct wl1271_cmd_scan *params = NULL;
int i, ret;
u16 scan_options = 0;
if (wl->scanning)
return -EINVAL;
params = kzalloc(sizeof(*params), GFP_KERNEL);
if (!params)
return -ENOMEM;
params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
params->params.rx_filter_options =
cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
if (!active_scan)
scan_options |= WL1271_SCAN_OPT_PASSIVE;
if (high_prio)
scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
params->params.scan_options = scan_options;
params->params.num_channels = num_channels;
params->params.num_probe_requests = probe_requests;
params->params.tx_rate = cpu_to_le32(CONF_HW_BIT_RATE_2MBPS);
params->params.tid_trigger = 0;
params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
for (i = 0; i < num_channels; i++) {
params->channels[i].min_duration =
cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
params->channels[i].max_duration =
cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
memset(¶ms->channels[i].bssid_lsb, 0xff, 4);
memset(¶ms->channels[i].bssid_msb, 0xff, 2);
params->channels[i].early_termination = 0;
params->channels[i].tx_power_att = WL1271_SCAN_CURRENT_TX_PWR;
params->channels[i].channel = i + 1;
}
if (len && ssid) {
params->params.ssid_len = len;
memcpy(params->params.ssid, ssid, len);
}
ret = wl1271_cmd_build_probe_req(wl, ssid, len);
if (ret < 0) {
wl1271_error("PROBE request template failed");
goto out;
}
trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
if (!trigger) {
ret = -ENOMEM;
goto out;
}
/* disable the timeout */
trigger->timeout = 0;
ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
sizeof(*trigger));
if (ret < 0) {
wl1271_error("trigger scan to failed for hw scan");
goto out;
}
wl1271_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
wl->scanning = true;
ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params));
if (ret < 0) {
wl1271_error("SCAN failed");
goto out;
}
wl1271_spi_read(wl, wl->cmd_box_addr, params, sizeof(*params),
false);
if (params->header.status != CMD_STATUS_SUCCESS) {
wl1271_error("Scan command error: %d",
params->header.status);
wl->scanning = false;
ret = -EIO;
goto out;
}
out:
kfree(params);
return ret;
}
int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
void *buf, size_t buf_len)
{
struct wl1271_cmd_template_set *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->len = cpu_to_le16(buf_len);
cmd->template_type = template_id;
cmd->enabled_rates = wl->conf.tx.rc_conf.enabled_rates;
cmd->short_retry_limit = wl->conf.tx.rc_conf.short_retry_limit;
cmd->long_retry_limit = wl->conf.tx.rc_conf.long_retry_limit;
if (buf)
memcpy(cmd->template_data, buf, buf_len);
ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd));
if (ret < 0) {
wl1271_warning("cmd set_template failed: %d", ret);
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
static int wl1271_build_basic_rates(char *rates)
{
u8 index = 0;
rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
return index;
}
static int wl1271_build_extended_rates(char *rates)
{
u8 index = 0;
rates[index++] = IEEE80211_OFDM_RATE_6MB;
rates[index++] = IEEE80211_OFDM_RATE_9MB;
rates[index++] = IEEE80211_OFDM_RATE_12MB;
rates[index++] = IEEE80211_OFDM_RATE_18MB;
rates[index++] = IEEE80211_OFDM_RATE_24MB;
rates[index++] = IEEE80211_OFDM_RATE_36MB;
rates[index++] = IEEE80211_OFDM_RATE_48MB;
rates[index++] = IEEE80211_OFDM_RATE_54MB;
return index;
}
int wl1271_cmd_build_null_data(struct wl1271 *wl)
{
struct wl12xx_null_data_template template;
if (!is_zero_ether_addr(wl->bssid)) {
memcpy(template.header.da, wl->bssid, ETH_ALEN);
memcpy(template.header.bssid, wl->bssid, ETH_ALEN);
} else {
memset(template.header.da, 0xff, ETH_ALEN);
memset(template.header.bssid, 0xff, ETH_ALEN);
}
memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_NULLFUNC);
return wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, &template,
sizeof(template));
}
int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
{
struct wl12xx_ps_poll_template template;
memcpy(template.bssid, wl->bssid, ETH_ALEN);
memcpy(template.ta, wl->mac_addr, ETH_ALEN);
/* aid in PS-Poll has its two MSBs each set to 1 */
template.aid = cpu_to_le16(1 << 15 | 1 << 14 | aid);
template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
return wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, &template,
sizeof(template));
}
int wl1271_cmd_build_probe_req(struct wl1271 *wl, u8 *ssid, size_t ssid_len)
{
struct wl12xx_probe_req_template template;
struct wl12xx_ie_rates *rates;
char *ptr;
u16 size;
ptr = (char *)&template;
size = sizeof(struct ieee80211_header);
memset(template.header.da, 0xff, ETH_ALEN);
memset(template.header.bssid, 0xff, ETH_ALEN);
memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
/* IEs */
/* SSID */
template.ssid.header.id = WLAN_EID_SSID;
template.ssid.header.len = ssid_len;
if (ssid_len && ssid)
memcpy(template.ssid.ssid, ssid, ssid_len);
size += sizeof(struct wl12xx_ie_header) + ssid_len;
ptr += size;
/* Basic Rates */
rates = (struct wl12xx_ie_rates *)ptr;
rates->header.id = WLAN_EID_SUPP_RATES;
rates->header.len = wl1271_build_basic_rates(rates->rates);
size += sizeof(struct wl12xx_ie_header) + rates->header.len;
ptr += sizeof(struct wl12xx_ie_header) + rates->header.len;
/* Extended rates */
rates = (struct wl12xx_ie_rates *)ptr;
rates->header.id = WLAN_EID_EXT_SUPP_RATES;
rates->header.len = wl1271_build_extended_rates(rates->rates);
size += sizeof(struct wl12xx_ie_header) + rates->header.len;
wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size);
return wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
&template, size);
}
int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
{
struct wl1271_cmd_set_keys *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->id = id;
cmd->key_action = KEY_SET_ID;
cmd->key_type = KEY_WEP;
ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd));
if (ret < 0) {
wl1271_warning("cmd set_default_wep_key failed: %d", ret);
goto out;
}
out:
kfree(cmd);
return ret;
}
int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
u8 key_size, const u8 *key, const u8 *addr,
u32 tx_seq_32, u16 tx_seq_16)
{
struct wl1271_cmd_set_keys *cmd;
int ret = 0;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
if (key_type != KEY_WEP)
memcpy(cmd->addr, addr, ETH_ALEN);
cmd->key_action = action;
cmd->key_size = key_size;
cmd->key_type = key_type;
cmd->ac_seq_num16[0] = tx_seq_16;
cmd->ac_seq_num32[0] = tx_seq_32;
/* we have only one SSID profile */
cmd->ssid_profile = 0;
cmd->id = id;
if (key_type == KEY_TKIP) {
/*
* We get the key in the following form:
* TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
* but the target is expecting:
* TKIP - RX MIC - TX MIC
*/
memcpy(cmd->key, key, 16);
memcpy(cmd->key + 16, key + 24, 8);
memcpy(cmd->key + 24, key + 16, 8);
} else {
memcpy(cmd->key, key, key_size);
}
wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd));
if (ret < 0) {
wl1271_warning("could not set keys");
goto out;
}
out:
kfree(cmd);
return ret;
}
int wl1271_cmd_disconnect(struct wl1271 *wl)
{
struct wl1271_cmd_disconnect *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd disconnect");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->rx_config_options = wl->rx_config;
cmd->rx_filter_options = wl->rx_filter;
/* disconnect reason is not used in immediate disconnections */
cmd->type = DISCONNECT_IMMEDIATE;
ret = wl1271_cmd_send(wl, CMD_DISCONNECT, cmd, sizeof(*cmd));
if (ret < 0) {
wl1271_error("failed to send disconnect command");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
