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iwlegacy: merge iwl-4965-sta.c into 4965-mac.c 

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
This commit is contained in:
Stanislaw Gruszka 2011-08-30 12:58:35 +02:00
parent 862d32e6db
commit eb3cdfb72d
3 changed files with 677 additions and 713 deletions
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677
drivers/net/wireless/iwlegacy/4965-mac.c
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@ -86,6 +86,683 @@ MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
MODULE_LICENSE("GPL");
MODULE_ALIAS("iwl4965");
static struct il_link_quality_cmd *
il4965_sta_alloc_lq(struct il_priv *il, u8 sta_id)
{
int i, r;
struct il_link_quality_cmd *link_cmd;
u32 rate_flags = 0;
__le32 rate_n_flags;
link_cmd = kzalloc(sizeof(struct il_link_quality_cmd), GFP_KERNEL);
if (!link_cmd) {
IL_ERR("Unable to allocate memory for LQ cmd.\n");
return NULL;
}
/* Set up the rate scaling to start at selected rate, fall back
* all the way down to 1M in IEEE order, and then spin on 1M */
if (il->band == IEEE80211_BAND_5GHZ)
r = RATE_6M_IDX;
else
r = RATE_1M_IDX;
if (r >= IL_FIRST_CCK_RATE && r <= IL_LAST_CCK_RATE)
rate_flags |= RATE_MCS_CCK_MSK;
rate_flags |= il4965_first_antenna(il->hw_params.valid_tx_ant) <<
RATE_MCS_ANT_POS;
rate_n_flags = il4965_hw_set_rate_n_flags(il_rates[r].plcp,
rate_flags);
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
link_cmd->rs_table[i].rate_n_flags = rate_n_flags;
link_cmd->general_params.single_stream_ant_msk =
il4965_first_antenna(il->hw_params.valid_tx_ant);
link_cmd->general_params.dual_stream_ant_msk =
il->hw_params.valid_tx_ant &
~il4965_first_antenna(il->hw_params.valid_tx_ant);
if (!link_cmd->general_params.dual_stream_ant_msk) {
link_cmd->general_params.dual_stream_ant_msk = ANT_AB;
} else if (il4965_num_of_ant(il->hw_params.valid_tx_ant) == 2) {
link_cmd->general_params.dual_stream_ant_msk =
il->hw_params.valid_tx_ant;
}
link_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
link_cmd->agg_params.agg_time_limit =
cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
link_cmd->sta_id = sta_id;
return link_cmd;
}
/*
* il4965_add_bssid_station - Add the special IBSS BSSID station
*
* Function sleeps.
*/
int
il4965_add_bssid_station(struct il_priv *il, struct il_rxon_context *ctx,
const u8 *addr, u8 *sta_id_r)
{
int ret;
u8 sta_id;
struct il_link_quality_cmd *link_cmd;
unsigned long flags;
if (sta_id_r)
*sta_id_r = IL_INVALID_STATION;
ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id);
if (ret) {
IL_ERR("Unable to add station %pM\n", addr);
return ret;
}
if (sta_id_r)
*sta_id_r = sta_id;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].used |= IL_STA_LOCAL;
spin_unlock_irqrestore(&il->sta_lock, flags);
/* Set up default rate scaling table in device's station table */
link_cmd = il4965_sta_alloc_lq(il, sta_id);
if (!link_cmd) {
IL_ERR(
"Unable to initialize rate scaling for station %pM.\n",
addr);
return -ENOMEM;
}
ret = il_send_lq_cmd(il, ctx, link_cmd, CMD_SYNC, true);
if (ret)
IL_ERR("Link quality command failed (%d)\n", ret);
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].lq = link_cmd;
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
static int il4965_static_wepkey_cmd(struct il_priv *il,
struct il_rxon_context *ctx,
bool send_if_empty)
{
int i, not_empty = 0;
u8 buff[sizeof(struct il_wep_cmd) +
sizeof(struct il_wep_key) * WEP_KEYS_MAX];
struct il_wep_cmd *wep_cmd = (struct il_wep_cmd *)buff;
size_t cmd_size = sizeof(struct il_wep_cmd);
struct il_host_cmd cmd = {
.id = ctx->wep_key_cmd,
.data = wep_cmd,
.flags = CMD_SYNC,
};
might_sleep();
memset(wep_cmd, 0, cmd_size +
(sizeof(struct il_wep_key) * WEP_KEYS_MAX));
for (i = 0; i < WEP_KEYS_MAX ; i++) {
wep_cmd->key[i].key_idx = i;
if (ctx->wep_keys[i].key_size) {
wep_cmd->key[i].key_offset = i;
not_empty = 1;
} else {
wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET;
}
wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size;
memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key,
ctx->wep_keys[i].key_size);
}
wep_cmd->global_key_type = WEP_KEY_WEP_TYPE;
wep_cmd->num_keys = WEP_KEYS_MAX;
cmd_size += sizeof(struct il_wep_key) * WEP_KEYS_MAX;
cmd.len = cmd_size;
if (not_empty || send_if_empty)
return il_send_cmd(il, &cmd);
else
return 0;
}
int il4965_restore_default_wep_keys(struct il_priv *il,
struct il_rxon_context *ctx)
{
lockdep_assert_held(&il->mutex);
return il4965_static_wepkey_cmd(il, ctx, false);
}
int il4965_remove_default_wep_key(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf)
{
int ret;
lockdep_assert_held(&il->mutex);
D_WEP("Removing default WEP key: idx=%d\n",
keyconf->keyidx);
memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0]));
if (il_is_rfkill(il)) {
D_WEP(
"Not sending REPLY_WEPKEY command due to RFKILL.\n");
/* but keys in device are clear anyway so return success */
return 0;
}
ret = il4965_static_wepkey_cmd(il, ctx, 1);
D_WEP("Remove default WEP key: idx=%d ret=%d\n",
keyconf->keyidx, ret);
return ret;
}
int il4965_set_default_wep_key(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf)
{
int ret;
lockdep_assert_held(&il->mutex);
if (keyconf->keylen != WEP_KEY_LEN_128 &&
keyconf->keylen != WEP_KEY_LEN_64) {
D_WEP("Bad WEP key length %d\n", keyconf->keylen);
return -EINVAL;
}
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
keyconf->hw_key_idx = HW_KEY_DEFAULT;
il->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher;
ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key,
keyconf->keylen);
ret = il4965_static_wepkey_cmd(il, ctx, false);
D_WEP("Set default WEP key: len=%d idx=%d ret=%d\n",
keyconf->keylen, keyconf->keyidx, ret);
return ret;
}
static int il4965_set_wep_dynamic_key_info(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
__le16 key_flags = 0;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
key_flags &= ~STA_KEY_FLG_INVALID;
if (keyconf->keylen == WEP_KEY_LEN_128)
key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
if (sta_id == ctx->bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
il->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
memcpy(il->stations[sta_id].keyinfo.key,
keyconf->key, keyconf->keylen);
memcpy(&il->stations[sta_id].sta.key.key[3],
keyconf->key, keyconf->keylen);
if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
== STA_KEY_FLG_NO_ENC)
il->stations[sta_id].sta.key.key_offset =
il_get_free_ucode_key_idx(il);
/* else, we are overriding an existing key => no need to allocated room
* in uCode. */
WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for a new key");
il->stations[sta_id].sta.key.key_flags = key_flags;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
static int il4965_set_ccmp_dynamic_key_info(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
__le16 key_flags = 0;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
key_flags &= ~STA_KEY_FLG_INVALID;
if (sta_id == ctx->bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
memcpy(il->stations[sta_id].keyinfo.key, keyconf->key,
keyconf->keylen);
memcpy(il->stations[sta_id].sta.key.key, keyconf->key,
keyconf->keylen);
if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
== STA_KEY_FLG_NO_ENC)
il->stations[sta_id].sta.key.key_offset =
il_get_free_ucode_key_idx(il);
/* else, we are overriding an existing key => no need to allocated room
* in uCode. */
WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for a new key");
il->stations[sta_id].sta.key.key_flags = key_flags;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
static int il4965_set_tkip_dynamic_key_info(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
int ret = 0;
__le16 key_flags = 0;
key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
key_flags &= ~STA_KEY_FLG_INVALID;
if (sta_id == ctx->bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
il->stations[sta_id].keyinfo.keylen = 16;
if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
== STA_KEY_FLG_NO_ENC)
il->stations[sta_id].sta.key.key_offset =
il_get_free_ucode_key_idx(il);
/* else, we are overriding an existing key => no need to allocated room
* in uCode. */
WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for a new key");
il->stations[sta_id].sta.key.key_flags = key_flags;
/* This copy is acutally not needed: we get the key with each TX */
memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, 16);
memcpy(il->stations[sta_id].sta.key.key, keyconf->key, 16);
spin_unlock_irqrestore(&il->sta_lock, flags);
return ret;
}
void il4965_update_tkip_key(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
struct ieee80211_sta *sta, u32 iv32, u16 *phase1key)
{
u8 sta_id;
unsigned long flags;
int i;
if (il_scan_cancel(il)) {
/* cancel scan failed, just live w/ bad key and rely
briefly on SW decryption */
return;
}
sta_id = il_sta_id_or_broadcast(il, ctx, sta);
if (sta_id == IL_INVALID_STATION)
return;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
for (i = 0; i < 5; i++)
il->stations[sta_id].sta.key.tkip_rx_ttak[i] =
cpu_to_le16(phase1key[i]);
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC);
spin_unlock_irqrestore(&il->sta_lock, flags);
}
int il4965_remove_dynamic_key(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
u16 key_flags;
u8 keyidx;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
ctx->key_mapping_keys--;
spin_lock_irqsave(&il->sta_lock, flags);
key_flags = le16_to_cpu(il->stations[sta_id].sta.key.key_flags);
keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
D_WEP("Remove dynamic key: idx=%d sta=%d\n",
keyconf->keyidx, sta_id);
if (keyconf->keyidx != keyidx) {
/* We need to remove a key with idx different that the one
* in the uCode. This means that the key we need to remove has
* been replaced by another one with different idx.
* Don't do anything and return ok
*/
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
if (il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
IL_WARN("Removing wrong key %d 0x%x\n",
keyconf->keyidx, key_flags);
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
if (!test_and_clear_bit(il->stations[sta_id].sta.key.key_offset,
&il->ucode_key_table))
IL_ERR("idx %d not used in uCode key table.\n",
il->stations[sta_id].sta.key.key_offset);
memset(&il->stations[sta_id].keyinfo, 0,
sizeof(struct il_hw_key));
memset(&il->stations[sta_id].sta.key, 0,
sizeof(struct il4965_keyinfo));
il->stations[sta_id].sta.key.key_flags =
STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
il->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
if (il_is_rfkill(il)) {
D_WEP(
"Not sending REPLY_ADD_STA command because RFKILL enabled.\n");
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
int il4965_set_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf, u8 sta_id)
{
int ret;
lockdep_assert_held(&il->mutex);
ctx->key_mapping_keys++;
keyconf->hw_key_idx = HW_KEY_DYNAMIC;
switch (keyconf->cipher) {
case WLAN_CIPHER_SUITE_CCMP:
ret = il4965_set_ccmp_dynamic_key_info(il, ctx,
keyconf, sta_id);
break;
case WLAN_CIPHER_SUITE_TKIP:
ret = il4965_set_tkip_dynamic_key_info(il, ctx,
keyconf, sta_id);
break;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
ret = il4965_set_wep_dynamic_key_info(il, ctx,
keyconf, sta_id);
break;
default:
IL_ERR(
"Unknown alg: %s cipher = %x\n", __func__,
keyconf->cipher);
ret = -EINVAL;
}
D_WEP(
"Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n",
keyconf->cipher, keyconf->keylen, keyconf->keyidx,
sta_id, ret);
return ret;
}
/**
* il4965_alloc_bcast_station - add broadcast station into driver's station table.
*
* This adds the broadcast station into the driver's station table
* and marks it driver active, so that it will be restored to the
* device at the next best time.
*/
int il4965_alloc_bcast_station(struct il_priv *il,
struct il_rxon_context *ctx)
{
struct il_link_quality_cmd *link_cmd;
unsigned long flags;
u8 sta_id;
spin_lock_irqsave(&il->sta_lock, flags);
sta_id = il_prep_station(il, ctx, il_bcast_addr,
false, NULL);
if (sta_id == IL_INVALID_STATION) {
IL_ERR("Unable to prepare broadcast station\n");
spin_unlock_irqrestore(&il->sta_lock, flags);
return -EINVAL;
}
il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE;
il->stations[sta_id].used |= IL_STA_BCAST;
spin_unlock_irqrestore(&il->sta_lock, flags);
link_cmd = il4965_sta_alloc_lq(il, sta_id);
if (!link_cmd) {
IL_ERR(
"Unable to initialize rate scaling for bcast station.\n");
return -ENOMEM;
}
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].lq = link_cmd;
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
/**
* il4965_update_bcast_station - update broadcast station's LQ command
*
* Only used by iwl4965. Placed here to have all bcast station management
* code together.
*/
static int il4965_update_bcast_station(struct il_priv *il,
struct il_rxon_context *ctx)
{
unsigned long flags;
struct il_link_quality_cmd *link_cmd;
u8 sta_id = ctx->bcast_sta_id;
link_cmd = il4965_sta_alloc_lq(il, sta_id);
if (!link_cmd) {
IL_ERR(
"Unable to initialize rate scaling for bcast station.\n");
return -ENOMEM;
}
spin_lock_irqsave(&il->sta_lock, flags);
if (il->stations[sta_id].lq)
kfree(il->stations[sta_id].lq);
else
D_INFO(
"Bcast station rate scaling has not been initialized yet.\n");
il->stations[sta_id].lq = link_cmd;
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
int il4965_update_bcast_stations(struct il_priv *il)
{
return il4965_update_bcast_station(il, &il->ctx);
}
/**
* il4965_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
*/
int il4965_sta_tx_modify_enable_tid(struct il_priv *il, int sta_id, int tid)
{
unsigned long flags;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
/* Remove "disable" flag, to enable Tx for this TID */
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
il->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
int il4965_sta_rx_agg_start(struct il_priv *il, struct ieee80211_sta *sta,
int tid, u16 ssn)
{
unsigned long flags;
int sta_id;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
sta_id = il_sta_id(sta);
if (sta_id == IL_INVALID_STATION)
return -ENXIO;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.station_flags_msk = 0;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
il->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
il->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
int il4965_sta_rx_agg_stop(struct il_priv *il, struct ieee80211_sta *sta,
int tid)
{
unsigned long flags;
int sta_id;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
sta_id = il_sta_id(sta);
if (sta_id == IL_INVALID_STATION) {
IL_ERR("Invalid station for AGG tid %d\n", tid);
return -ENXIO;
}
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.station_flags_msk = 0;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
il->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
void
il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt)
{
unsigned long flags;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK;
il->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
il->stations[sta_id].sta.sta.modify_mask =
STA_MODIFY_SLEEP_TX_COUNT_MSK;
il->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
il_send_add_sta(il,
&il->stations[sta_id].sta, CMD_ASYNC);
spin_unlock_irqrestore(&il->sta_lock, flags);
}
void il4965_update_chain_flags(struct il_priv *il)
{
if (il->cfg->ops->hcmd->set_rxon_chain) {

1
drivers/net/wireless/iwlegacy/Makefile
View File

@ -11,7 +11,6 @@ obj-$(CONFIG_IWL4965) += iwl4965.o
iwl4965-objs := 4965.o 4965-mac.o iwl-4965-rs.o
iwl4965-objs += iwl-4965-tx.o
iwl4965-objs += iwl-4965-lib.o iwl-4965-rx.o iwl-4965-calib.o
iwl4965-objs += iwl-4965-sta.o
iwl4965-$(CONFIG_IWLEGACY_DEBUGFS) += iwl-4965-debugfs.o
# 3945

712
drivers/net/wireless/iwlegacy/iwl-4965-sta.c
View File

@ -1,712 +0,0 @@
/******************************************************************************
*
* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* 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.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
#include <net/mac80211.h>
#include "iwl-dev.h"
#include "iwl-core.h"
#include "iwl-sta.h"
#include "iwl-4965.h"
static struct il_link_quality_cmd *
il4965_sta_alloc_lq(struct il_priv *il, u8 sta_id)
{
int i, r;
struct il_link_quality_cmd *link_cmd;
u32 rate_flags = 0;
__le32 rate_n_flags;
link_cmd = kzalloc(sizeof(struct il_link_quality_cmd), GFP_KERNEL);
if (!link_cmd) {
IL_ERR("Unable to allocate memory for LQ cmd.\n");
return NULL;
}
/* Set up the rate scaling to start at selected rate, fall back
* all the way down to 1M in IEEE order, and then spin on 1M */
if (il->band == IEEE80211_BAND_5GHZ)
r = RATE_6M_IDX;
else
r = RATE_1M_IDX;
if (r >= IL_FIRST_CCK_RATE && r <= IL_LAST_CCK_RATE)
rate_flags |= RATE_MCS_CCK_MSK;
rate_flags |= il4965_first_antenna(il->hw_params.valid_tx_ant) <<
RATE_MCS_ANT_POS;
rate_n_flags = il4965_hw_set_rate_n_flags(il_rates[r].plcp,
rate_flags);
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
link_cmd->rs_table[i].rate_n_flags = rate_n_flags;
link_cmd->general_params.single_stream_ant_msk =
il4965_first_antenna(il->hw_params.valid_tx_ant);
link_cmd->general_params.dual_stream_ant_msk =
il->hw_params.valid_tx_ant &
~il4965_first_antenna(il->hw_params.valid_tx_ant);
if (!link_cmd->general_params.dual_stream_ant_msk) {
link_cmd->general_params.dual_stream_ant_msk = ANT_AB;
} else if (il4965_num_of_ant(il->hw_params.valid_tx_ant) == 2) {
link_cmd->general_params.dual_stream_ant_msk =
il->hw_params.valid_tx_ant;
}
link_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
link_cmd->agg_params.agg_time_limit =
cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
link_cmd->sta_id = sta_id;
return link_cmd;
}
/*
* il4965_add_bssid_station - Add the special IBSS BSSID station
*
* Function sleeps.
*/
int
il4965_add_bssid_station(struct il_priv *il, struct il_rxon_context *ctx,
const u8 *addr, u8 *sta_id_r)
{
int ret;
u8 sta_id;
struct il_link_quality_cmd *link_cmd;
unsigned long flags;
if (sta_id_r)
*sta_id_r = IL_INVALID_STATION;
ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id);
if (ret) {
IL_ERR("Unable to add station %pM\n", addr);
return ret;
}
if (sta_id_r)
*sta_id_r = sta_id;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].used |= IL_STA_LOCAL;
spin_unlock_irqrestore(&il->sta_lock, flags);
/* Set up default rate scaling table in device's station table */
link_cmd = il4965_sta_alloc_lq(il, sta_id);
if (!link_cmd) {
IL_ERR(
"Unable to initialize rate scaling for station %pM.\n",
addr);
return -ENOMEM;
}
ret = il_send_lq_cmd(il, ctx, link_cmd, CMD_SYNC, true);
if (ret)
IL_ERR("Link quality command failed (%d)\n", ret);
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].lq = link_cmd;
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
static int il4965_static_wepkey_cmd(struct il_priv *il,
struct il_rxon_context *ctx,
bool send_if_empty)
{
int i, not_empty = 0;
u8 buff[sizeof(struct il_wep_cmd) +
sizeof(struct il_wep_key) * WEP_KEYS_MAX];
struct il_wep_cmd *wep_cmd = (struct il_wep_cmd *)buff;
size_t cmd_size = sizeof(struct il_wep_cmd);
struct il_host_cmd cmd = {
.id = ctx->wep_key_cmd,
.data = wep_cmd,
.flags = CMD_SYNC,
};
might_sleep();
memset(wep_cmd, 0, cmd_size +
(sizeof(struct il_wep_key) * WEP_KEYS_MAX));
for (i = 0; i < WEP_KEYS_MAX ; i++) {
wep_cmd->key[i].key_idx = i;
if (ctx->wep_keys[i].key_size) {
wep_cmd->key[i].key_offset = i;
not_empty = 1;
} else {
wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET;
}
wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size;
memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key,
ctx->wep_keys[i].key_size);
}
wep_cmd->global_key_type = WEP_KEY_WEP_TYPE;
wep_cmd->num_keys = WEP_KEYS_MAX;
cmd_size += sizeof(struct il_wep_key) * WEP_KEYS_MAX;
cmd.len = cmd_size;
if (not_empty || send_if_empty)
return il_send_cmd(il, &cmd);
else
return 0;
}
int il4965_restore_default_wep_keys(struct il_priv *il,
struct il_rxon_context *ctx)
{
lockdep_assert_held(&il->mutex);
return il4965_static_wepkey_cmd(il, ctx, false);
}
int il4965_remove_default_wep_key(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf)
{
int ret;
lockdep_assert_held(&il->mutex);
D_WEP("Removing default WEP key: idx=%d\n",
keyconf->keyidx);
memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0]));
if (il_is_rfkill(il)) {
D_WEP(
"Not sending REPLY_WEPKEY command due to RFKILL.\n");
/* but keys in device are clear anyway so return success */
return 0;
}
ret = il4965_static_wepkey_cmd(il, ctx, 1);
D_WEP("Remove default WEP key: idx=%d ret=%d\n",
keyconf->keyidx, ret);
return ret;
}
int il4965_set_default_wep_key(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf)
{
int ret;
lockdep_assert_held(&il->mutex);
if (keyconf->keylen != WEP_KEY_LEN_128 &&
keyconf->keylen != WEP_KEY_LEN_64) {
D_WEP("Bad WEP key length %d\n", keyconf->keylen);
return -EINVAL;
}
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
keyconf->hw_key_idx = HW_KEY_DEFAULT;
il->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher;
ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key,
keyconf->keylen);
ret = il4965_static_wepkey_cmd(il, ctx, false);
D_WEP("Set default WEP key: len=%d idx=%d ret=%d\n",
keyconf->keylen, keyconf->keyidx, ret);
return ret;
}
static int il4965_set_wep_dynamic_key_info(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
__le16 key_flags = 0;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
key_flags &= ~STA_KEY_FLG_INVALID;
if (keyconf->keylen == WEP_KEY_LEN_128)
key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
if (sta_id == ctx->bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
il->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
memcpy(il->stations[sta_id].keyinfo.key,
keyconf->key, keyconf->keylen);
memcpy(&il->stations[sta_id].sta.key.key[3],
keyconf->key, keyconf->keylen);
if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
== STA_KEY_FLG_NO_ENC)
il->stations[sta_id].sta.key.key_offset =
il_get_free_ucode_key_idx(il);
/* else, we are overriding an existing key => no need to allocated room
* in uCode. */
WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for a new key");
il->stations[sta_id].sta.key.key_flags = key_flags;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
static int il4965_set_ccmp_dynamic_key_info(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
__le16 key_flags = 0;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
key_flags &= ~STA_KEY_FLG_INVALID;
if (sta_id == ctx->bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
memcpy(il->stations[sta_id].keyinfo.key, keyconf->key,
keyconf->keylen);
memcpy(il->stations[sta_id].sta.key.key, keyconf->key,
keyconf->keylen);
if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
== STA_KEY_FLG_NO_ENC)
il->stations[sta_id].sta.key.key_offset =
il_get_free_ucode_key_idx(il);
/* else, we are overriding an existing key => no need to allocated room
* in uCode. */
WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for a new key");
il->stations[sta_id].sta.key.key_flags = key_flags;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
static int il4965_set_tkip_dynamic_key_info(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
int ret = 0;
__le16 key_flags = 0;
key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
key_flags &= ~STA_KEY_FLG_INVALID;
if (sta_id == ctx->bcast_sta_id)
key_flags |= STA_KEY_MULTICAST_MSK;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
il->stations[sta_id].keyinfo.keylen = 16;
if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
== STA_KEY_FLG_NO_ENC)
il->stations[sta_id].sta.key.key_offset =
il_get_free_ucode_key_idx(il);
/* else, we are overriding an existing key => no need to allocated room
* in uCode. */
WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
"no space for a new key");
il->stations[sta_id].sta.key.key_flags = key_flags;
/* This copy is acutally not needed: we get the key with each TX */
memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, 16);
memcpy(il->stations[sta_id].sta.key.key, keyconf->key, 16);
spin_unlock_irqrestore(&il->sta_lock, flags);
return ret;
}
void il4965_update_tkip_key(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
struct ieee80211_sta *sta, u32 iv32, u16 *phase1key)
{
u8 sta_id;
unsigned long flags;
int i;
if (il_scan_cancel(il)) {
/* cancel scan failed, just live w/ bad key and rely
briefly on SW decryption */
return;
}
sta_id = il_sta_id_or_broadcast(il, ctx, sta);
if (sta_id == IL_INVALID_STATION)
return;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
for (i = 0; i < 5; i++)
il->stations[sta_id].sta.key.tkip_rx_ttak[i] =
cpu_to_le16(phase1key[i]);
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC);
spin_unlock_irqrestore(&il->sta_lock, flags);
}
int il4965_remove_dynamic_key(struct il_priv *il,
struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf,
u8 sta_id)
{
unsigned long flags;
u16 key_flags;
u8 keyidx;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
ctx->key_mapping_keys--;
spin_lock_irqsave(&il->sta_lock, flags);
key_flags = le16_to_cpu(il->stations[sta_id].sta.key.key_flags);
keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
D_WEP("Remove dynamic key: idx=%d sta=%d\n",
keyconf->keyidx, sta_id);
if (keyconf->keyidx != keyidx) {
/* We need to remove a key with idx different that the one
* in the uCode. This means that the key we need to remove has
* been replaced by another one with different idx.
* Don't do anything and return ok
*/
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
if (il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
IL_WARN("Removing wrong key %d 0x%x\n",
keyconf->keyidx, key_flags);
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
if (!test_and_clear_bit(il->stations[sta_id].sta.key.key_offset,
&il->ucode_key_table))
IL_ERR("idx %d not used in uCode key table.\n",
il->stations[sta_id].sta.key.key_offset);
memset(&il->stations[sta_id].keyinfo, 0,
sizeof(struct il_hw_key));
memset(&il->stations[sta_id].sta.key, 0,
sizeof(struct il4965_keyinfo));
il->stations[sta_id].sta.key.key_flags =
STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
il->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
if (il_is_rfkill(il)) {
D_WEP(
"Not sending REPLY_ADD_STA command because RFKILL enabled.\n");
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
int il4965_set_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx,
struct ieee80211_key_conf *keyconf, u8 sta_id)
{
int ret;
lockdep_assert_held(&il->mutex);
ctx->key_mapping_keys++;
keyconf->hw_key_idx = HW_KEY_DYNAMIC;
switch (keyconf->cipher) {
case WLAN_CIPHER_SUITE_CCMP:
ret = il4965_set_ccmp_dynamic_key_info(il, ctx,
keyconf, sta_id);
break;
case WLAN_CIPHER_SUITE_TKIP:
ret = il4965_set_tkip_dynamic_key_info(il, ctx,
keyconf, sta_id);
break;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
ret = il4965_set_wep_dynamic_key_info(il, ctx,
keyconf, sta_id);
break;
default:
IL_ERR(
"Unknown alg: %s cipher = %x\n", __func__,
keyconf->cipher);
ret = -EINVAL;
}
D_WEP(
"Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n",
keyconf->cipher, keyconf->keylen, keyconf->keyidx,
sta_id, ret);
return ret;
}
/**
* il4965_alloc_bcast_station - add broadcast station into driver's station table.
*
* This adds the broadcast station into the driver's station table
* and marks it driver active, so that it will be restored to the
* device at the next best time.
*/
int il4965_alloc_bcast_station(struct il_priv *il,
struct il_rxon_context *ctx)
{
struct il_link_quality_cmd *link_cmd;
unsigned long flags;
u8 sta_id;
spin_lock_irqsave(&il->sta_lock, flags);
sta_id = il_prep_station(il, ctx, il_bcast_addr,
false, NULL);
if (sta_id == IL_INVALID_STATION) {
IL_ERR("Unable to prepare broadcast station\n");
spin_unlock_irqrestore(&il->sta_lock, flags);
return -EINVAL;
}
il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE;
il->stations[sta_id].used |= IL_STA_BCAST;
spin_unlock_irqrestore(&il->sta_lock, flags);
link_cmd = il4965_sta_alloc_lq(il, sta_id);
if (!link_cmd) {
IL_ERR(
"Unable to initialize rate scaling for bcast station.\n");
return -ENOMEM;
}
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].lq = link_cmd;
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
/**
* il4965_update_bcast_station - update broadcast station's LQ command
*
* Only used by iwl4965. Placed here to have all bcast station management
* code together.
*/
static int il4965_update_bcast_station(struct il_priv *il,
struct il_rxon_context *ctx)
{
unsigned long flags;
struct il_link_quality_cmd *link_cmd;
u8 sta_id = ctx->bcast_sta_id;
link_cmd = il4965_sta_alloc_lq(il, sta_id);
if (!link_cmd) {
IL_ERR(
"Unable to initialize rate scaling for bcast station.\n");
return -ENOMEM;
}
spin_lock_irqsave(&il->sta_lock, flags);
if (il->stations[sta_id].lq)
kfree(il->stations[sta_id].lq);
else
D_INFO(
"Bcast station rate scaling has not been initialized yet.\n");
il->stations[sta_id].lq = link_cmd;
spin_unlock_irqrestore(&il->sta_lock, flags);
return 0;
}
int il4965_update_bcast_stations(struct il_priv *il)
{
return il4965_update_bcast_station(il, &il->ctx);
}
/**
* il4965_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
*/
int il4965_sta_tx_modify_enable_tid(struct il_priv *il, int sta_id, int tid)
{
unsigned long flags;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
/* Remove "disable" flag, to enable Tx for this TID */
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
il->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
int il4965_sta_rx_agg_start(struct il_priv *il, struct ieee80211_sta *sta,
int tid, u16 ssn)
{
unsigned long flags;
int sta_id;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
sta_id = il_sta_id(sta);
if (sta_id == IL_INVALID_STATION)
return -ENXIO;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.station_flags_msk = 0;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
il->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
il->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
int il4965_sta_rx_agg_stop(struct il_priv *il, struct ieee80211_sta *sta,
int tid)
{
unsigned long flags;
int sta_id;
struct il_addsta_cmd sta_cmd;
lockdep_assert_held(&il->mutex);
sta_id = il_sta_id(sta);
if (sta_id == IL_INVALID_STATION) {
IL_ERR("Invalid station for AGG tid %d\n", tid);
return -ENXIO;
}
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.station_flags_msk = 0;
il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
il->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
memcpy(&sta_cmd, &il->stations[sta_id].sta,
sizeof(struct il_addsta_cmd));
spin_unlock_irqrestore(&il->sta_lock, flags);
return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
}
void
il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt)
{
unsigned long flags;
spin_lock_irqsave(&il->sta_lock, flags);
il->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK;
il->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
il->stations[sta_id].sta.sta.modify_mask =
STA_MODIFY_SLEEP_TX_COUNT_MSK;
il->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
il_send_add_sta(il,
&il->stations[sta_id].sta, CMD_ASYNC);
spin_unlock_irqrestore(&il->sta_lock, flags);
}