mirror of https://gitee.com/openkylin/linux.git
347 lines
8.0 KiB
C
347 lines
8.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright 2015 Intel Deutschland GmbH
|
|
*/
|
|
#include <net/mac80211.h>
|
|
#include "ieee80211_i.h"
|
|
#include "trace.h"
|
|
#include "driver-ops.h"
|
|
|
|
int drv_start(struct ieee80211_local *local)
|
|
{
|
|
int ret;
|
|
|
|
might_sleep();
|
|
|
|
if (WARN_ON(local->started))
|
|
return -EALREADY;
|
|
|
|
trace_drv_start(local);
|
|
local->started = true;
|
|
/* allow rx frames */
|
|
smp_mb();
|
|
ret = local->ops->start(&local->hw);
|
|
trace_drv_return_int(local, ret);
|
|
|
|
if (ret)
|
|
local->started = false;
|
|
|
|
return ret;
|
|
}
|
|
|
|
void drv_stop(struct ieee80211_local *local)
|
|
{
|
|
might_sleep();
|
|
|
|
if (WARN_ON(!local->started))
|
|
return;
|
|
|
|
trace_drv_stop(local);
|
|
local->ops->stop(&local->hw);
|
|
trace_drv_return_void(local);
|
|
|
|
/* sync away all work on the tasklet before clearing started */
|
|
tasklet_disable(&local->tasklet);
|
|
tasklet_enable(&local->tasklet);
|
|
|
|
barrier();
|
|
|
|
local->started = false;
|
|
}
|
|
|
|
int drv_add_interface(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
int ret;
|
|
|
|
might_sleep();
|
|
|
|
if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
|
|
(sdata->vif.type == NL80211_IFTYPE_MONITOR &&
|
|
!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) &&
|
|
!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))))
|
|
return -EINVAL;
|
|
|
|
trace_drv_add_interface(local, sdata);
|
|
ret = local->ops->add_interface(&local->hw, &sdata->vif);
|
|
trace_drv_return_int(local, ret);
|
|
|
|
if (ret == 0)
|
|
sdata->flags |= IEEE80211_SDATA_IN_DRIVER;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int drv_change_interface(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
enum nl80211_iftype type, bool p2p)
|
|
{
|
|
int ret;
|
|
|
|
might_sleep();
|
|
|
|
if (!check_sdata_in_driver(sdata))
|
|
return -EIO;
|
|
|
|
trace_drv_change_interface(local, sdata, type, p2p);
|
|
ret = local->ops->change_interface(&local->hw, &sdata->vif, type, p2p);
|
|
trace_drv_return_int(local, ret);
|
|
return ret;
|
|
}
|
|
|
|
void drv_remove_interface(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
might_sleep();
|
|
|
|
if (!check_sdata_in_driver(sdata))
|
|
return;
|
|
|
|
trace_drv_remove_interface(local, sdata);
|
|
local->ops->remove_interface(&local->hw, &sdata->vif);
|
|
sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER;
|
|
trace_drv_return_void(local);
|
|
}
|
|
|
|
__must_check
|
|
int drv_sta_state(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
struct sta_info *sta,
|
|
enum ieee80211_sta_state old_state,
|
|
enum ieee80211_sta_state new_state)
|
|
{
|
|
int ret = 0;
|
|
|
|
might_sleep();
|
|
|
|
sdata = get_bss_sdata(sdata);
|
|
if (!check_sdata_in_driver(sdata))
|
|
return -EIO;
|
|
|
|
trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
|
|
if (local->ops->sta_state) {
|
|
ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta,
|
|
old_state, new_state);
|
|
} else if (old_state == IEEE80211_STA_AUTH &&
|
|
new_state == IEEE80211_STA_ASSOC) {
|
|
ret = drv_sta_add(local, sdata, &sta->sta);
|
|
if (ret == 0) {
|
|
sta->uploaded = true;
|
|
if (rcu_access_pointer(sta->sta.rates))
|
|
drv_sta_rate_tbl_update(local, sdata, &sta->sta);
|
|
}
|
|
} else if (old_state == IEEE80211_STA_ASSOC &&
|
|
new_state == IEEE80211_STA_AUTH) {
|
|
drv_sta_remove(local, sdata, &sta->sta);
|
|
}
|
|
trace_drv_return_int(local, ret);
|
|
return ret;
|
|
}
|
|
|
|
__must_check
|
|
int drv_sta_set_txpwr(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
struct sta_info *sta)
|
|
{
|
|
int ret = -EOPNOTSUPP;
|
|
|
|
might_sleep();
|
|
|
|
sdata = get_bss_sdata(sdata);
|
|
if (!check_sdata_in_driver(sdata))
|
|
return -EIO;
|
|
|
|
trace_drv_sta_set_txpwr(local, sdata, &sta->sta);
|
|
if (local->ops->sta_set_txpwr)
|
|
ret = local->ops->sta_set_txpwr(&local->hw, &sdata->vif,
|
|
&sta->sta);
|
|
trace_drv_return_int(local, ret);
|
|
return ret;
|
|
}
|
|
|
|
void drv_sta_rc_update(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_sta *sta, u32 changed)
|
|
{
|
|
sdata = get_bss_sdata(sdata);
|
|
if (!check_sdata_in_driver(sdata))
|
|
return;
|
|
|
|
WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED &&
|
|
(sdata->vif.type != NL80211_IFTYPE_ADHOC &&
|
|
sdata->vif.type != NL80211_IFTYPE_MESH_POINT));
|
|
|
|
trace_drv_sta_rc_update(local, sdata, sta, changed);
|
|
if (local->ops->sta_rc_update)
|
|
local->ops->sta_rc_update(&local->hw, &sdata->vif,
|
|
sta, changed);
|
|
|
|
trace_drv_return_void(local);
|
|
}
|
|
|
|
int drv_conf_tx(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata, u16 ac,
|
|
const struct ieee80211_tx_queue_params *params)
|
|
{
|
|
int ret = -EOPNOTSUPP;
|
|
|
|
might_sleep();
|
|
|
|
if (!check_sdata_in_driver(sdata))
|
|
return -EIO;
|
|
|
|
if (params->cw_min == 0 || params->cw_min > params->cw_max) {
|
|
/*
|
|
* If we can't configure hardware anyway, don't warn. We may
|
|
* never have initialized the CW parameters.
|
|
*/
|
|
WARN_ONCE(local->ops->conf_tx,
|
|
"%s: invalid CW_min/CW_max: %d/%d\n",
|
|
sdata->name, params->cw_min, params->cw_max);
|
|
return -EINVAL;
|
|
}
|
|
|
|
trace_drv_conf_tx(local, sdata, ac, params);
|
|
if (local->ops->conf_tx)
|
|
ret = local->ops->conf_tx(&local->hw, &sdata->vif,
|
|
ac, params);
|
|
trace_drv_return_int(local, ret);
|
|
return ret;
|
|
}
|
|
|
|
u64 drv_get_tsf(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
u64 ret = -1ULL;
|
|
|
|
might_sleep();
|
|
|
|
if (!check_sdata_in_driver(sdata))
|
|
return ret;
|
|
|
|
trace_drv_get_tsf(local, sdata);
|
|
if (local->ops->get_tsf)
|
|
ret = local->ops->get_tsf(&local->hw, &sdata->vif);
|
|
trace_drv_return_u64(local, ret);
|
|
return ret;
|
|
}
|
|
|
|
void drv_set_tsf(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
u64 tsf)
|
|
{
|
|
might_sleep();
|
|
|
|
if (!check_sdata_in_driver(sdata))
|
|
return;
|
|
|
|
trace_drv_set_tsf(local, sdata, tsf);
|
|
if (local->ops->set_tsf)
|
|
local->ops->set_tsf(&local->hw, &sdata->vif, tsf);
|
|
trace_drv_return_void(local);
|
|
}
|
|
|
|
void drv_offset_tsf(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
s64 offset)
|
|
{
|
|
might_sleep();
|
|
|
|
if (!check_sdata_in_driver(sdata))
|
|
return;
|
|
|
|
trace_drv_offset_tsf(local, sdata, offset);
|
|
if (local->ops->offset_tsf)
|
|
local->ops->offset_tsf(&local->hw, &sdata->vif, offset);
|
|
trace_drv_return_void(local);
|
|
}
|
|
|
|
void drv_reset_tsf(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
might_sleep();
|
|
|
|
if (!check_sdata_in_driver(sdata))
|
|
return;
|
|
|
|
trace_drv_reset_tsf(local, sdata);
|
|
if (local->ops->reset_tsf)
|
|
local->ops->reset_tsf(&local->hw, &sdata->vif);
|
|
trace_drv_return_void(local);
|
|
}
|
|
|
|
int drv_switch_vif_chanctx(struct ieee80211_local *local,
|
|
struct ieee80211_vif_chanctx_switch *vifs,
|
|
int n_vifs, enum ieee80211_chanctx_switch_mode mode)
|
|
{
|
|
int ret = 0;
|
|
int i;
|
|
|
|
might_sleep();
|
|
|
|
if (!local->ops->switch_vif_chanctx)
|
|
return -EOPNOTSUPP;
|
|
|
|
for (i = 0; i < n_vifs; i++) {
|
|
struct ieee80211_chanctx *new_ctx =
|
|
container_of(vifs[i].new_ctx,
|
|
struct ieee80211_chanctx,
|
|
conf);
|
|
struct ieee80211_chanctx *old_ctx =
|
|
container_of(vifs[i].old_ctx,
|
|
struct ieee80211_chanctx,
|
|
conf);
|
|
|
|
WARN_ON_ONCE(!old_ctx->driver_present);
|
|
WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS &&
|
|
new_ctx->driver_present) ||
|
|
(mode == CHANCTX_SWMODE_REASSIGN_VIF &&
|
|
!new_ctx->driver_present));
|
|
}
|
|
|
|
trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode);
|
|
ret = local->ops->switch_vif_chanctx(&local->hw,
|
|
vifs, n_vifs, mode);
|
|
trace_drv_return_int(local, ret);
|
|
|
|
if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
|
|
for (i = 0; i < n_vifs; i++) {
|
|
struct ieee80211_chanctx *new_ctx =
|
|
container_of(vifs[i].new_ctx,
|
|
struct ieee80211_chanctx,
|
|
conf);
|
|
struct ieee80211_chanctx *old_ctx =
|
|
container_of(vifs[i].old_ctx,
|
|
struct ieee80211_chanctx,
|
|
conf);
|
|
|
|
new_ctx->driver_present = true;
|
|
old_ctx->driver_present = false;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int drv_ampdu_action(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_ampdu_params *params)
|
|
{
|
|
int ret = -EOPNOTSUPP;
|
|
|
|
might_sleep();
|
|
|
|
sdata = get_bss_sdata(sdata);
|
|
if (!check_sdata_in_driver(sdata))
|
|
return -EIO;
|
|
|
|
trace_drv_ampdu_action(local, sdata, params);
|
|
|
|
if (local->ops->ampdu_action)
|
|
ret = local->ops->ampdu_action(&local->hw, &sdata->vif, params);
|
|
|
|
trace_drv_return_int(local, ret);
|
|
|
|
return ret;
|
|
}
|