leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
b9239b6658
linux/drivers/net/wireless/wl12xx/cmd.c
Arik Nemtsov 6246ca003f wl12xx: reset link Tx queues when freeing it 
Before, the link was first freed (invalidating it in the map), and later
on vif removal, all valid wlvif-related links were reset. Since these
links were already invalid, we failed to reset them.
The bug was made worse by op_stop, which set the tx_queue_count to 0
arbitrarily. This resulted in a negative tx_queue_count in some scenarios.

Fix this by resetting the Tx-queues of a link when freeing it. Add a
WARN_ON and reset all link Tx-queues in op_stop, to avoid a negative
tx_queue_count.

[changed WARN_ON to WARN_ON_ONCE -- Luca]

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
2012-02-28 13:24:45 +02:00

1936 lines
44 KiB
C
Raw Blame History

/*
* This file is part of wl1271
*
* Copyright (C) 2009-2010 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/spi/spi.h>
#include <linux/etherdevice.h>
#include <linux/ieee80211.h>
#include <linux/slab.h>
#include "wl12xx.h"
#include "debug.h"
#include "reg.h"
#include "io.h"
#include "acx.h"
#include "wl12xx_80211.h"
#include "cmd.h"
#include "event.h"
#include "tx.h"
#define WL1271_CMD_FAST_POLL_COUNT 50
/*
* 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,
size_t res_len)
{
struct wl1271_cmd_header *cmd;
unsigned long timeout;
u32 intr;
int ret = 0;
u16 status;
u16 poll_count = 0;
cmd = buf;
cmd->id = cpu_to_le16(id);
cmd->status = 0;
WARN_ON(len % 4 != 0);
WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
wl1271_write(wl, wl->cmd_box_addr, buf, len, false);
wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
intr = wl1271_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 fail;
}
poll_count++;
if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
udelay(10);
else
msleep(1);
intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
}
/* read back the status code of the command */
if (res_len == 0)
res_len = sizeof(struct wl1271_cmd_header);
wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false);
status = le16_to_cpu(cmd->status);
if (status != CMD_STATUS_SUCCESS) {
wl1271_error("command execute failure %d", status);
ret = -EIO;
goto fail;
}
wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
WL1271_ACX_INTR_CMD_COMPLETE);
return 0;
fail:
WARN_ON(1);
wl12xx_queue_recovery_work(wl);
return ret;
}
int wl1271_cmd_general_parms(struct wl1271 *wl)
{
struct wl1271_general_parms_cmd *gen_parms;
struct wl1271_ini_general_params *gp =
&((struct wl1271_nvs_file *)wl->nvs)->general_params;
bool answer = false;
int ret;
if (!wl->nvs)
return -ENODEV;
if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
wl1271_warning("FEM index from INI out of bounds");
return -EINVAL;
}
gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
if (!gen_parms)
return -ENOMEM;
gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
memcpy(&gen_parms->general_params, gp, sizeof(*gp));
if (gp->tx_bip_fem_auto_detect)
answer = true;
/* Override the REF CLK from the NVS with the one from platform data */
gen_parms->general_params.ref_clock = wl->ref_clock;
ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
if (ret < 0) {
wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
goto out;
}
gp->tx_bip_fem_manufacturer =
gen_parms->general_params.tx_bip_fem_manufacturer;
if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
wl1271_warning("FEM index from FW out of bounds");
ret = -EINVAL;
goto out;
}
wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n",
answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer);
out:
kfree(gen_parms);
return ret;
}
int wl128x_cmd_general_parms(struct wl1271 *wl)
{
struct wl128x_general_parms_cmd *gen_parms;
struct wl128x_ini_general_params *gp =
&((struct wl128x_nvs_file *)wl->nvs)->general_params;
bool answer = false;
int ret;
if (!wl->nvs)
return -ENODEV;
if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
wl1271_warning("FEM index from ini out of bounds");
return -EINVAL;
}
gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
if (!gen_parms)
return -ENOMEM;
gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
memcpy(&gen_parms->general_params, gp, sizeof(*gp));
if (gp->tx_bip_fem_auto_detect)
answer = true;
/* Replace REF and TCXO CLKs with the ones from platform data */
gen_parms->general_params.ref_clock = wl->ref_clock;
gen_parms->general_params.tcxo_ref_clock = wl->tcxo_clock;
ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
if (ret < 0) {
wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
goto out;
}
gp->tx_bip_fem_manufacturer =
gen_parms->general_params.tx_bip_fem_manufacturer;
if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
wl1271_warning("FEM index from FW out of bounds");
ret = -EINVAL;
goto out;
}
wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n",
answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer);
out:
kfree(gen_parms);
return ret;
}
int wl1271_cmd_radio_parms(struct wl1271 *wl)
{
struct wl1271_nvs_file *nvs = (struct wl1271_nvs_file *)wl->nvs;
struct wl1271_radio_parms_cmd *radio_parms;
struct wl1271_ini_general_params *gp = &nvs->general_params;
int ret;
if (!wl->nvs)
return -ENODEV;
radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
if (!radio_parms)
return -ENOMEM;
radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
/* 2.4GHz parameters */
memcpy(&radio_parms->static_params_2, &nvs->stat_radio_params_2,
sizeof(struct wl1271_ini_band_params_2));
memcpy(&radio_parms->dyn_params_2,
&nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
sizeof(struct wl1271_ini_fem_params_2));
/* 5GHz parameters */
memcpy(&radio_parms->static_params_5,
&nvs->stat_radio_params_5,
sizeof(struct wl1271_ini_band_params_5));
memcpy(&radio_parms->dyn_params_5,
&nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
sizeof(struct wl1271_ini_fem_params_5));
wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
radio_parms, sizeof(*radio_parms));
ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
if (ret < 0)
wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
kfree(radio_parms);
return ret;
}
int wl128x_cmd_radio_parms(struct wl1271 *wl)
{
struct wl128x_nvs_file *nvs = (struct wl128x_nvs_file *)wl->nvs;
struct wl128x_radio_parms_cmd *radio_parms;
struct wl128x_ini_general_params *gp = &nvs->general_params;
int ret;
if (!wl->nvs)
return -ENODEV;
radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
if (!radio_parms)
return -ENOMEM;
radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
/* 2.4GHz parameters */
memcpy(&radio_parms->static_params_2, &nvs->stat_radio_params_2,
sizeof(struct wl128x_ini_band_params_2));
memcpy(&radio_parms->dyn_params_2,
&nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
sizeof(struct wl128x_ini_fem_params_2));
/* 5GHz parameters */
memcpy(&radio_parms->static_params_5,
&nvs->stat_radio_params_5,
sizeof(struct wl128x_ini_band_params_5));
memcpy(&radio_parms->dyn_params_5,
&nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
sizeof(struct wl128x_ini_fem_params_5));
radio_parms->fem_vendor_and_options = nvs->fem_vendor_and_options;
wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
radio_parms, sizeof(*radio_parms));
ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
if (ret < 0)
wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
kfree(radio_parms);
return ret;
}
int wl1271_cmd_ext_radio_parms(struct wl1271 *wl)
{
struct wl1271_ext_radio_parms_cmd *ext_radio_parms;
struct conf_rf_settings *rf = &wl->conf.rf;
int ret;
if (!wl->nvs)
return -ENODEV;
ext_radio_parms = kzalloc(sizeof(*ext_radio_parms), GFP_KERNEL);
if (!ext_radio_parms)
return -ENOMEM;
ext_radio_parms->test.id = TEST_CMD_INI_FILE_RF_EXTENDED_PARAM;
memcpy(ext_radio_parms->tx_per_channel_power_compensation_2,
rf->tx_per_channel_power_compensation_2,
CONF_TX_PWR_COMPENSATION_LEN_2);
memcpy(ext_radio_parms->tx_per_channel_power_compensation_5,
rf->tx_per_channel_power_compensation_5,
CONF_TX_PWR_COMPENSATION_LEN_5);
wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_EXT_RADIO_PARAM: ",
ext_radio_parms, sizeof(*ext_radio_parms));
ret = wl1271_cmd_test(wl, ext_radio_parms, sizeof(*ext_radio_parms), 0);
if (ret < 0)
wl1271_warning("TEST_CMD_INI_FILE_RF_EXTENDED_PARAM failed");
kfree(ext_radio_parms);
return ret;
}
/*
* Poll the mailbox event field until any of the bits in the mask is set or a
* timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
*/
static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, u32 mask)
{
u32 events_vector, event;
unsigned long timeout;
timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
do {
if (time_after(jiffies, timeout)) {
wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
(int)mask);
return -ETIMEDOUT;
}
msleep(1);
/* read from both event fields */
wl1271_read(wl, wl->mbox_ptr[0], &events_vector,
sizeof(events_vector), false);
event = events_vector & mask;
wl1271_read(wl, wl->mbox_ptr[1], &events_vector,
sizeof(events_vector), false);
event |= events_vector & mask;
} while (!event);
return 0;
}
static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask)
{
int ret;
ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask);
if (ret != 0) {
wl12xx_queue_recovery_work(wl);
return ret;
}
return 0;
}
int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
u8 *role_id)
{
struct wl12xx_cmd_role_enable *cmd;
int ret;
wl1271_debug(DEBUG_CMD, "cmd role enable");
if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID))
return -EBUSY;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
/* get role id */
cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES);
if (cmd->role_id >= WL12XX_MAX_ROLES) {
ret = -EBUSY;
goto out_free;
}
memcpy(cmd->mac_address, addr, ETH_ALEN);
cmd->role_type = role_type;
ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd role enable");
goto out_free;
}
__set_bit(cmd->role_id, wl->roles_map);
*role_id = cmd->role_id;
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id)
{
struct wl12xx_cmd_role_disable *cmd;
int ret;
wl1271_debug(DEBUG_CMD, "cmd role disable");
if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID))
return -ENOENT;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->role_id = *role_id;
ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd role disable");
goto out_free;
}
__clear_bit(*role_id, wl->roles_map);
*role_id = WL12XX_INVALID_ROLE_ID;
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
{
unsigned long flags;
u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS);
if (link >= WL12XX_MAX_LINKS)
return -EBUSY;
/* these bits are used by op_tx */
spin_lock_irqsave(&wl->wl_lock, flags);
__set_bit(link, wl->links_map);
__set_bit(link, wlvif->links_map);
spin_unlock_irqrestore(&wl->wl_lock, flags);
*hlid = link;
return 0;
}
void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
{
unsigned long flags;
if (*hlid == WL12XX_INVALID_LINK_ID)
return;
/* these bits are used by op_tx */
spin_lock_irqsave(&wl->wl_lock, flags);
__clear_bit(*hlid, wl->links_map);
__clear_bit(*hlid, wlvif->links_map);
spin_unlock_irqrestore(&wl->wl_lock, flags);
/*
* At this point op_tx() will not add more packets to the queues. We
* can purge them.
*/
wl1271_tx_reset_link_queues(wl, *hlid);
*hlid = WL12XX_INVALID_LINK_ID;
}
static int wl12xx_get_new_session_id(struct wl1271 *wl,
struct wl12xx_vif *wlvif)
{
if (wlvif->session_counter >= SESSION_COUNTER_MAX)
wlvif->session_counter = 0;
wlvif->session_counter++;
return wlvif->session_counter;
}
static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
struct wl12xx_vif *wlvif)
{
struct wl12xx_cmd_role_start *cmd;
int ret;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
cmd->role_id = wlvif->dev_role_id;
if (wlvif->band == IEEE80211_BAND_5GHZ)
cmd->band = WL12XX_BAND_5GHZ;
cmd->channel = wlvif->channel;
if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
if (ret)
goto out_free;
}
cmd->device.hlid = wlvif->dev_hlid;
cmd->device.session = wlvif->session_counter;
wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
cmd->role_id, cmd->device.hlid, cmd->device.session);
ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd role enable");
goto err_hlid;
}
goto out_free;
err_hlid:
/* clear links on error */
wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
out_free:
kfree(cmd);
out:
return ret;
}
static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
struct wl12xx_vif *wlvif)
{
struct wl12xx_cmd_role_stop *cmd;
int ret;
if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
return -EINVAL;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
wl1271_debug(DEBUG_CMD, "cmd role stop dev");
cmd->role_id = wlvif->dev_role_id;
cmd->disc_type = DISCONNECT_IMMEDIATE;
cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd role stop");
goto out_free;
}
ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID);
if (ret < 0) {
wl1271_error("cmd role stop dev event completion error");
goto out_free;
}
wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
struct wl12xx_cmd_role_start *cmd;
int ret;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
cmd->role_id = wlvif->role_id;
if (wlvif->band == IEEE80211_BAND_5GHZ)
cmd->band = WL12XX_BAND_5GHZ;
cmd->channel = wlvif->channel;
cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
cmd->sta.ssid_len = wlvif->ssid_len;
memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
if (ret)
goto out_free;
}
cmd->sta.hlid = wlvif->sta.hlid;
cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif);
cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set);
wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
"basic_rate_set: 0x%x, remote_rates: 0x%x",
wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
wlvif->basic_rate_set, wlvif->rate_set);
ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd role start sta");
goto err_hlid;
}
goto out_free;
err_hlid:
/* clear links on error. */
wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
out_free:
kfree(cmd);
out:
return ret;
}
/* use this function to stop ibss as well */
int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
struct wl12xx_cmd_role_stop *cmd;
int ret;
if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
return -EINVAL;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
cmd->role_id = wlvif->role_id;
cmd->disc_type = DISCONNECT_IMMEDIATE;
cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd role stop sta");
goto out_free;
}
wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
struct wl12xx_cmd_role_start *cmd;
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
int ret;
wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
/* trying to use hidden SSID with an old hostapd version */
if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
wl1271_error("got a null SSID from beacon/bss");
ret = -EINVAL;
goto out;
}
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
if (ret < 0)
goto out_free;
ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
if (ret < 0)
goto out_free_global;
cmd->role_id = wlvif->role_id;
cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
cmd->ap.global_hlid = wlvif->ap.global_hlid;
cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
cmd->ap.dtim_interval = bss_conf->dtim_period;
cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
/* FIXME: Change when adding DFS */
cmd->ap.reset_tsf = 1; /* By default reset AP TSF */
cmd->channel = wlvif->channel;
if (!bss_conf->hidden_ssid) {
/* take the SSID from the beacon for backward compatibility */
cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
cmd->ap.ssid_len = wlvif->ssid_len;
memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
} else {
cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
cmd->ap.ssid_len = bss_conf->ssid_len;
memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
}
cmd->ap.local_rates = cpu_to_le32(0xffffffff);
switch (wlvif->band) {
case IEEE80211_BAND_2GHZ:
cmd->band = RADIO_BAND_2_4GHZ;
break;
case IEEE80211_BAND_5GHZ:
cmd->band = RADIO_BAND_5GHZ;
break;
default:
wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
cmd->band = RADIO_BAND_2_4GHZ;
break;
}
ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd role start ap");
goto out_free_bcast;
}
goto out_free;
out_free_bcast:
wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
out_free_global:
wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
struct wl12xx_cmd_role_stop *cmd;
int ret;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
cmd->role_id = wlvif->role_id;
ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd role stop ap");
goto out_free;
}
wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
struct wl12xx_cmd_role_start *cmd;
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
int ret;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
cmd->role_id = wlvif->role_id;
if (wlvif->band == IEEE80211_BAND_5GHZ)
cmd->band = WL12XX_BAND_5GHZ;
cmd->channel = wlvif->channel;
cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
cmd->ibss.dtim_interval = bss_conf->dtim_period;
cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
cmd->ibss.ssid_len = wlvif->ssid_len;
memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
if (ret)
goto out_free;
}
cmd->ibss.hlid = wlvif->sta.hlid;
cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
"basic_rate_set: 0x%x, remote_rates: 0x%x",
wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
wlvif->basic_rate_set, wlvif->rate_set);
wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
vif->bss_conf.bssid);
ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd role enable");
goto err_hlid;
}
goto out_free;
err_hlid:
/* clear links on error. */
wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
out_free:
kfree(cmd);
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;
size_t res_len = 0;
wl1271_debug(DEBUG_CMD, "cmd test");
if (answer)
res_len = buf_len;
ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
if (ret < 0) {
wl1271_warning("TEST command failed");
return ret;
}
return ret;
}
/**
* read acx from firmware
*
* @wl: wl struct
* @id: acx id
* @buf: buffer for the response, including all headers, must work with dma
* @len: length 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 = cpu_to_le16(id);
/* payload length, does not include any headers */
acx->len = cpu_to_le16(len - sizeof(*acx));
ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
if (ret < 0)
wl1271_error("INTERROGATE command failed");
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 (%d)", id);
acx->id = cpu_to_le16(id);
/* payload length, does not include any headers */
acx->len = cpu_to_le16(len - sizeof(*acx));
ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
if (ret < 0) {
wl1271_warning("CONFIGURE command NOK");
return ret;
}
return 0;
}
int wl1271_cmd_data_path(struct wl1271 *wl, 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;
}
/* the channel here is only used for calibration, so hardcoded to 1 */
cmd->channel = 1;
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), 0);
if (ret < 0) {
wl1271_error("rx %s cmd for channel %d failed",
enable ? "start" : "stop", cmd->channel);
goto out;
}
wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
enable ? "start" : "stop", cmd->channel);
ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("tx %s cmd for channel %d failed",
enable ? "start" : "stop", cmd->channel);
goto out;
}
wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
enable ? "start" : "stop", cmd->channel);
out:
kfree(cmd);
return ret;
}
int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
u8 ps_mode, u16 auto_ps_timeout)
{
struct wl1271_cmd_ps_params *ps_params = NULL;
int ret = 0;
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->role_id = wlvif->role_id;
ps_params->ps_mode = ps_mode;
ps_params->auto_ps_timeout = auto_ps_timeout;
ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
sizeof(*ps_params), 0);
if (ret < 0) {
wl1271_error("cmd set_ps_mode failed");
goto out;
}
out:
kfree(ps_params);
return ret;
}
int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
u16 template_id, void *buf, size_t buf_len,
int index, u32 rates)
{
struct wl1271_cmd_template_set *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
template_id, role_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;
}
/* during initialization wlvif is NULL */
cmd->role_id = role_id;
cmd->len = cpu_to_le16(buf_len);
cmd->template_type = template_id;
cmd->enabled_rates = cpu_to_le32(rates);
cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
cmd->index = index;
if (buf)
memcpy(cmd->template_data, buf, buf_len);
ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_warning("cmd set_template failed: %d", ret);
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
struct sk_buff *skb = NULL;
int size;
void *ptr;
int ret = -ENOMEM;
if (wlvif->bss_type == BSS_TYPE_IBSS) {
size = sizeof(struct wl12xx_null_data_template);
ptr = NULL;
} else {
skb = ieee80211_nullfunc_get(wl->hw,
wl12xx_wlvif_to_vif(wlvif));
if (!skb)
goto out;
size = skb->len;
ptr = skb->data;
}
ret = wl1271_cmd_template_set(wl, wlvif->role_id,
CMD_TEMPL_NULL_DATA, ptr, size, 0,
wlvif->basic_rate);
out:
dev_kfree_skb(skb);
if (ret)
wl1271_warning("cmd buld null data failed %d", ret);
return ret;
}
int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
struct wl12xx_vif *wlvif)
{
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
struct sk_buff *skb = NULL;
int ret = -ENOMEM;
skb = ieee80211_nullfunc_get(wl->hw, vif);
if (!skb)
goto out;
ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
skb->data, skb->len,
CMD_TEMPL_KLV_IDX_NULL_DATA,
wlvif->basic_rate);
out:
dev_kfree_skb(skb);
if (ret)
wl1271_warning("cmd build klv null data failed %d", ret);
return ret;
}
int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
u16 aid)
{
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
struct sk_buff *skb;
int ret = 0;
skb = ieee80211_pspoll_get(wl->hw, vif);
if (!skb)
goto out;
ret = wl1271_cmd_template_set(wl, wlvif->role_id,
CMD_TEMPL_PS_POLL, skb->data,
skb->len, 0, wlvif->basic_rate_set);
out:
dev_kfree_skb(skb);
return ret;
}
int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
u8 role_id, u8 band,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len)
{
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
struct sk_buff *skb;
int ret;
u32 rate;
skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len,
ie, ie_len);
if (!skb) {
ret = -ENOMEM;
goto out;
}
wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
if (band == IEEE80211_BAND_2GHZ)
ret = wl1271_cmd_template_set(wl, role_id,
CMD_TEMPL_CFG_PROBE_REQ_2_4,
skb->data, skb->len, 0, rate);
else
ret = wl1271_cmd_template_set(wl, role_id,
CMD_TEMPL_CFG_PROBE_REQ_5,
skb->data, skb->len, 0, rate);
out:
dev_kfree_skb(skb);
return ret;
}
struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
struct wl12xx_vif *wlvif,
struct sk_buff *skb)
{
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
int ret;
u32 rate;
if (!skb)
skb = ieee80211_ap_probereq_get(wl->hw, vif);
if (!skb)
goto out;
wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len);
rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
if (wlvif->band == IEEE80211_BAND_2GHZ)
ret = wl1271_cmd_template_set(wl, wlvif->role_id,
CMD_TEMPL_CFG_PROBE_REQ_2_4,
skb->data, skb->len, 0, rate);
else
ret = wl1271_cmd_template_set(wl, wlvif->role_id,
CMD_TEMPL_CFG_PROBE_REQ_5,
skb->data, skb->len, 0, rate);
if (ret < 0)
wl1271_error("Unable to set ap probe request template.");
out:
return skb;
}
int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
int ret, extra;
u16 fc;
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
struct sk_buff *skb;
struct wl12xx_arp_rsp_template *tmpl;
struct ieee80211_hdr_3addr *hdr;
struct arphdr *arp_hdr;
skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
WL1271_EXTRA_SPACE_MAX);
if (!skb) {
wl1271_error("failed to allocate buffer for arp rsp template");
return -ENOMEM;
}
skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl));
memset(tmpl, 0, sizeof(tmpl));
/* llc layer */
memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
/* arp header */
arp_hdr = &tmpl->arp_hdr;
arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
arp_hdr->ar_hln = ETH_ALEN;
arp_hdr->ar_pln = 4;
arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
/* arp payload */
memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
tmpl->sender_ip = wlvif->ip_addr;
/* encryption space */
switch (wlvif->encryption_type) {
case KEY_TKIP:
extra = WL1271_EXTRA_SPACE_TKIP;
break;
case KEY_AES:
extra = WL1271_EXTRA_SPACE_AES;
break;
case KEY_NONE:
case KEY_WEP:
case KEY_GEM:
extra = 0;
break;
default:
wl1271_warning("Unknown encryption type: %d",
wlvif->encryption_type);
ret = -EINVAL;
goto out;
}
if (extra) {
u8 *space = skb_push(skb, extra);
memset(space, 0, extra);
}
/* QoS header - BE */
if (wlvif->sta.qos)
memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
/* mac80211 header */
hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr));
memset(hdr, 0, sizeof(hdr));
fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
if (wlvif->sta.qos)
fc |= IEEE80211_STYPE_QOS_DATA;
else
fc |= IEEE80211_STYPE_DATA;
if (wlvif->encryption_type != KEY_NONE)
fc |= IEEE80211_FCTL_PROTECTED;
hdr->frame_control = cpu_to_le16(fc);
memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
memcpy(hdr->addr2, vif->addr, ETH_ALEN);
memset(hdr->addr3, 0xff, ETH_ALEN);
ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
skb->data, skb->len, 0,
wlvif->basic_rate);
out:
dev_kfree_skb(skb);
return ret;
}
int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
{
struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
struct ieee80211_qos_hdr template;
memset(&template, 0, sizeof(template));
memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
memcpy(template.addr2, vif->addr, ETH_ALEN);
memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_QOS_NULLFUNC |
IEEE80211_FCTL_TODS);
/* FIXME: not sure what priority to use here */
template.qos_ctrl = cpu_to_le16(0);
return wl1271_cmd_template_set(wl, wlvif->role_id,
CMD_TEMPL_QOS_NULL_DATA, &template,
sizeof(template), 0,
wlvif->basic_rate);
}
int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
{
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->hlid = hlid;
cmd->key_id = id;
cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
cmd->key_action = cpu_to_le16(KEY_SET_ID);
cmd->key_type = KEY_WEP;
ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_warning("cmd set_default_wep_key failed: %d", ret);
goto out;
}
out:
kfree(cmd);
return ret;
}
int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
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;
/* hlid might have already been deleted */
if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
return 0;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->hlid = wlvif->sta.hlid;
if (key_type == KEY_WEP)
cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
else if (is_broadcast_ether_addr(addr))
cmd->lid_key_type = BROADCAST_LID_TYPE;
else
cmd->lid_key_type = UNICAST_LID_TYPE;
cmd->key_action = cpu_to_le16(action);
cmd->key_size = key_size;
cmd->key_type = key_type;
cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
cmd->key_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), 0);
if (ret < 0) {
wl1271_warning("could not set keys");
goto out;
}
out:
kfree(cmd);
return ret;
}
/*
* TODO: merge with sta/ibss into 1 set_key function.
* note there are slight diffs
*/
int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
u16 action, u8 id, u8 key_type,
u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
u16 tx_seq_16)
{
struct wl1271_cmd_set_keys *cmd;
int ret = 0;
u8 lid_type;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd)
return -ENOMEM;
if (hlid == wlvif->ap.bcast_hlid) {
if (key_type == KEY_WEP)
lid_type = WEP_DEFAULT_LID_TYPE;
else
lid_type = BROADCAST_LID_TYPE;
} else {
lid_type = UNICAST_LID_TYPE;
}
wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
" hlid: %d", (int)action, (int)id, (int)lid_type,
(int)key_type, (int)hlid);
cmd->lid_key_type = lid_type;
cmd->hlid = hlid;
cmd->key_action = cpu_to_le16(action);
cmd->key_size = key_size;
cmd->key_type = key_type;
cmd->key_id = id;
cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
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 AP KEY: ", cmd, sizeof(*cmd));
ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_warning("could not set ap keys");
goto out;
}
out:
kfree(cmd);
return ret;
}
int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid)
{
struct wl12xx_cmd_set_peer_state *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->hlid = hlid;
cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to send set peer state command");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
struct ieee80211_sta *sta, u8 hlid)
{
struct wl12xx_cmd_add_peer *cmd;
int i, ret;
u32 sta_rates;
wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
memcpy(cmd->addr, sta->addr, ETH_ALEN);
cmd->bss_index = WL1271_AP_BSS_INDEX;
cmd->aid = sta->aid;
cmd->hlid = hlid;
cmd->sp_len = sta->max_sp;
cmd->wmm = sta->wme ? 1 : 0;
for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
if (sta->wme && (sta->uapsd_queues & BIT(i)))
cmd->psd_type[i] = WL1271_PSD_UPSD_TRIGGER;
else
cmd->psd_type[i] = WL1271_PSD_LEGACY;
sta_rates = sta->supp_rates[wlvif->band];
if (sta->ht_cap.ht_supported)
sta_rates |= sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET;
cmd->supported_rates =
cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
wlvif->band));
wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
cmd->supported_rates, sta->uapsd_queues);
ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd add peer");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid)
{
struct wl12xx_cmd_remove_peer *cmd;
int ret;
wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->hlid = hlid;
/* We never send a deauth, mac80211 is in charge of this */
cmd->reason_opcode = 0;
cmd->send_deauth_flag = 0;
ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to initiate cmd remove peer");
goto out_free;
}
/*
* We are ok with a timeout here. The event is sometimes not sent
* due to a firmware bug.
*/
wl1271_cmd_wait_for_event_or_timeout(wl,
PEER_REMOVE_COMPLETE_EVENT_ID);
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
{
struct wl12xx_cmd_config_fwlog *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->logger_mode = wl->conf.fwlog.mode;
cmd->log_severity = wl->conf.fwlog.severity;
cmd->timestamp = wl->conf.fwlog.timestamp;
cmd->output = wl->conf.fwlog.output;
cmd->threshold = wl->conf.fwlog.threshold;
ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to send config firmware logger command");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
{
struct wl12xx_cmd_start_fwlog *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to send start firmware logger command");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
{
struct wl12xx_cmd_stop_fwlog *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to send stop firmware logger command");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
u8 role_id)
{
struct wl12xx_cmd_roc *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id);
if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
return -EINVAL;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->role_id = role_id;
cmd->channel = wlvif->channel;
switch (wlvif->band) {
case IEEE80211_BAND_2GHZ:
cmd->band = RADIO_BAND_2_4GHZ;
break;
case IEEE80211_BAND_5GHZ:
cmd->band = RADIO_BAND_5GHZ;
break;
default:
wl1271_error("roc - unknown band: %d", (int)wlvif->band);
ret = -EINVAL;
goto out_free;
}
ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to send ROC command");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
{
struct wl12xx_cmd_croc *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->role_id = role_id;
ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to send ROC command");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id)
{
int ret = 0;
if (WARN_ON(test_bit(role_id, wl->roc_map)))
return 0;
ret = wl12xx_cmd_roc(wl, wlvif, role_id);
if (ret < 0)
goto out;
ret = wl1271_cmd_wait_for_event(wl,
REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID);
if (ret < 0) {
wl1271_error("cmd roc event completion error");
goto out;
}
__set_bit(role_id, wl->roc_map);
out:
return ret;
}
int wl12xx_croc(struct wl1271 *wl, u8 role_id)
{
int ret = 0;
if (WARN_ON(!test_bit(role_id, wl->roc_map)))
return 0;
ret = wl12xx_cmd_croc(wl, role_id);
if (ret < 0)
goto out;
__clear_bit(role_id, wl->roc_map);
out:
return ret;
}
int wl12xx_cmd_channel_switch(struct wl1271 *wl,
struct wl12xx_vif *wlvif,
struct ieee80211_channel_switch *ch_switch)
{
struct wl12xx_cmd_channel_switch *cmd;
int ret;
wl1271_debug(DEBUG_ACX, "cmd channel switch");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
cmd->role_id = wlvif->role_id;
cmd->channel = ch_switch->channel->hw_value;
cmd->switch_time = ch_switch->count;
cmd->stop_tx = ch_switch->block_tx;
/* FIXME: control from mac80211 in the future */
cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */
ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to send channel switch command");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl)
{
struct wl12xx_cmd_stop_channel_switch *cmd;
int ret;
wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd) {
ret = -ENOMEM;
goto out;
}
ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
if (ret < 0) {
wl1271_error("failed to stop channel switch command");
goto out_free;
}
out_free:
kfree(cmd);
out:
return ret;
}
/* start dev role and roc on its channel */
int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
int ret;
if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
wlvif->bss_type == BSS_TYPE_IBSS)))
return -EINVAL;
ret = wl12xx_cmd_role_start_dev(wl, wlvif);
if (ret < 0)
goto out;
ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
if (ret < 0)
goto out_stop;
return 0;
out_stop:
wl12xx_cmd_role_stop_dev(wl, wlvif);
out:
return ret;
}
/* croc dev hlid, and stop the role */
int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
int ret;
if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
wlvif->bss_type == BSS_TYPE_IBSS)))
return -EINVAL;
/* flush all pending packets */
wl1271_tx_work_locked(wl);
if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
ret = wl12xx_croc(wl, wlvif->dev_role_id);
if (ret < 0)
goto out;
}
ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
if (ret < 0)
goto out;
out:
return ret;
}
Reference in New Issue View Git Blame Copy Permalink