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// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/* Copyright(c) 2019-2020 Realtek Corporation
*/
#include "chan.h"
#include "coex.h"
#include "core.h"
#include "debug.h"
#include "fw.h"
#include "mac.h"
#include "ps.h"
#include "reg.h"
#include "util.h"
static int rtw89_fw_leave_lps_check(struct rtw89_dev *rtwdev, u8 macid)
{
const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def;
u32 pwr_en_bit = 0xE;
u32 chk_msk = pwr_en_bit << (4 * macid);
u32 polling;
int ret;
ret = read_poll_timeout_atomic(rtw89_read32_mask, polling, !polling,
1000, 50000, false, rtwdev,
mac->ps_status, chk_msk);
if (ret) {
rtw89_info(rtwdev, "rtw89: failed to leave lps state\n");
return -EBUSY;
}
return 0;
}
static void rtw89_ps_power_mode_change_with_hci(struct rtw89_dev *rtwdev,
bool enter)
{
ieee80211_stop_queues(rtwdev->hw);
rtwdev->hci.paused = true;
flush_work(&rtwdev->txq_work);
ieee80211_wake_queues(rtwdev->hw);
rtw89_hci_pause(rtwdev, true);
rtw89_mac_power_mode_change(rtwdev, enter);
rtw89_hci_switch_mode(rtwdev, enter);
rtw89_hci_pause(rtwdev, false);
rtwdev->hci.paused = false;
if (!enter) {
local_bh_disable();
napi_schedule(&rtwdev->napi);
local_bh_enable();
}
}
static void rtw89_ps_power_mode_change(struct rtw89_dev *rtwdev, bool enter)
{
if (rtwdev->chip->low_power_hci_modes & BIT(rtwdev->ps_mode) &&
!test_bit(RTW89_FLAG_WOWLAN, rtwdev->flags))
rtw89_ps_power_mode_change_with_hci(rtwdev, enter);
else
rtw89_mac_power_mode_change(rtwdev, enter);
}
void __rtw89_enter_ps_mode(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif)
{
if (rtwvif->wifi_role == RTW89_WIFI_ROLE_P2P_CLIENT)
return;
if (!rtwdev->ps_mode)
return;
if (test_and_set_bit(RTW89_FLAG_LOW_POWER_MODE, rtwdev->flags))
return;
rtw89_ps_power_mode_change(rtwdev, true);
}
void __rtw89_leave_ps_mode(struct rtw89_dev *rtwdev)
{
if (!rtwdev->ps_mode)
return;
if (test_and_clear_bit(RTW89_FLAG_LOW_POWER_MODE, rtwdev->flags))
rtw89_ps_power_mode_change(rtwdev, false);
}
static void __rtw89_enter_lps(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif)
{
struct rtw89_lps_parm lps_param = {
.macid = rtwvif->mac_id,
.psmode = RTW89_MAC_AX_PS_MODE_LEGACY,
.lastrpwm = RTW89_LAST_RPWM_PS,
};
rtw89_btc_ntfy_radio_state(rtwdev, BTC_RFCTRL_FW_CTRL);
rtw89_fw_h2c_lps_parm(rtwdev, &lps_param);
rtw89_fw_h2c_lps_ch_info(rtwdev, rtwvif);
}
static void __rtw89_leave_lps(struct rtw89_dev *rtwdev, u8 mac_id)
{
struct rtw89_lps_parm lps_param = {
.macid = mac_id,
.psmode = RTW89_MAC_AX_PS_MODE_ACTIVE,
.lastrpwm = RTW89_LAST_RPWM_ACTIVE,
};
rtw89_fw_h2c_lps_parm(rtwdev, &lps_param);
rtw89_fw_leave_lps_check(rtwdev, 0);
rtw89_btc_ntfy_radio_state(rtwdev, BTC_RFCTRL_WL_ON);
}
void rtw89_leave_ps_mode(struct rtw89_dev *rtwdev)
{
lockdep_assert_held(&rtwdev->mutex);
__rtw89_leave_ps_mode(rtwdev);
}
void rtw89_enter_lps(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif,
bool ps_mode)
{
lockdep_assert_held(&rtwdev->mutex);
if (test_and_set_bit(RTW89_FLAG_LEISURE_PS, rtwdev->flags))
return;
__rtw89_enter_lps(rtwdev, rtwvif);
if (ps_mode)
__rtw89_enter_ps_mode(rtwdev, rtwvif);
}
static void rtw89_leave_lps_vif(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif)
{
if (rtwvif->wifi_role != RTW89_WIFI_ROLE_STATION &&
rtwvif->wifi_role != RTW89_WIFI_ROLE_P2P_CLIENT)
return;
__rtw89_leave_lps(rtwdev, rtwvif->mac_id);
}
void rtw89_leave_lps(struct rtw89_dev *rtwdev)
{
struct rtw89_vif *rtwvif;
lockdep_assert_held(&rtwdev->mutex);
if (!test_and_clear_bit(RTW89_FLAG_LEISURE_PS, rtwdev->flags))
return;
__rtw89_leave_ps_mode(rtwdev);
rtw89_for_each_rtwvif(rtwdev, rtwvif)
rtw89_leave_lps_vif(rtwdev, rtwvif);
}
void rtw89_enter_ips(struct rtw89_dev *rtwdev)
{
struct rtw89_vif *rtwvif;
set_bit(RTW89_FLAG_INACTIVE_PS, rtwdev->flags);
if (!test_bit(RTW89_FLAG_POWERON, rtwdev->flags))
return;
rtw89_for_each_rtwvif(rtwdev, rtwvif)
rtw89_mac_vif_deinit(rtwdev, rtwvif);
rtw89_core_stop(rtwdev);
}
void rtw89_leave_ips(struct rtw89_dev *rtwdev)
{
struct rtw89_vif *rtwvif;
int ret;
if (test_bit(RTW89_FLAG_POWERON, rtwdev->flags))
return;
ret = rtw89_core_start(rtwdev);
if (ret)
rtw89_err(rtwdev, "failed to leave idle state\n");
rtw89_set_channel(rtwdev);
rtw89_for_each_rtwvif(rtwdev, rtwvif)
rtw89_mac_vif_init(rtwdev, rtwvif);
clear_bit(RTW89_FLAG_INACTIVE_PS, rtwdev->flags);
}
void rtw89_set_coex_ctrl_lps(struct rtw89_dev *rtwdev, bool btc_ctrl)
{
if (btc_ctrl)
rtw89_leave_lps(rtwdev);
}
static void rtw89_tsf32_toggle(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif,
enum rtw89_p2pps_action act)
{
if (act == RTW89_P2P_ACT_UPDATE || act == RTW89_P2P_ACT_REMOVE)
return;
if (act == RTW89_P2P_ACT_INIT)
rtw89_fw_h2c_tsf32_toggle(rtwdev, rtwvif, true);
else if (act == RTW89_P2P_ACT_TERMINATE)
rtw89_fw_h2c_tsf32_toggle(rtwdev, rtwvif, false);
}
static void rtw89_p2p_disable_all_noa(struct rtw89_dev *rtwdev,
struct ieee80211_vif *vif)
{
struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;
enum rtw89_p2pps_action act;
u8 noa_id;
if (rtwvif->last_noa_nr == 0)
return;
for (noa_id = 0; noa_id < rtwvif->last_noa_nr; noa_id++) {
if (noa_id == rtwvif->last_noa_nr - 1)
act = RTW89_P2P_ACT_TERMINATE;
else
act = RTW89_P2P_ACT_REMOVE;
rtw89_tsf32_toggle(rtwdev, rtwvif, act);
rtw89_fw_h2c_p2p_act(rtwdev, vif, NULL, act, noa_id);
}
}
static void rtw89_p2p_update_noa(struct rtw89_dev *rtwdev,
struct ieee80211_vif *vif)
{
struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;
struct ieee80211_p2p_noa_desc *desc;
enum rtw89_p2pps_action act;
u8 noa_id;
for (noa_id = 0; noa_id < RTW89_P2P_MAX_NOA_NUM; noa_id++) {
desc = &vif->bss_conf.p2p_noa_attr.desc[noa_id];
if (!desc->count || !desc->duration)
break;
if (noa_id == 0)
act = RTW89_P2P_ACT_INIT;
else
act = RTW89_P2P_ACT_UPDATE;
rtw89_tsf32_toggle(rtwdev, rtwvif, act);
rtw89_fw_h2c_p2p_act(rtwdev, vif, desc, act, noa_id);
}
rtwvif->last_noa_nr = noa_id;
}
void rtw89_process_p2p_ps(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif)
{
rtw89_p2p_disable_all_noa(rtwdev, vif);
rtw89_p2p_update_noa(rtwdev, vif);
}
void rtw89_recalc_lps(struct rtw89_dev *rtwdev)
{
struct ieee80211_vif *vif, *found_vif = NULL;
struct rtw89_vif *rtwvif;
enum rtw89_entity_mode mode;
int count = 0;
mode = rtw89_get_entity_mode(rtwdev);
if (mode == RTW89_ENTITY_MODE_MCC)
goto disable_lps;
rtw89_for_each_rtwvif(rtwdev, rtwvif) {
vif = rtwvif_to_vif(rtwvif);
if (vif->type != NL80211_IFTYPE_STATION) {
count = 0;
break;
}
count++;
found_vif = vif;
}
if (count == 1 && found_vif->cfg.ps) {
rtwdev->lps_enabled = true;
return;
}
disable_lps:
rtw89_leave_lps(rtwdev);
rtwdev->lps_enabled = false;
}
void rtw89_p2p_noa_renew(struct rtw89_vif *rtwvif)
{
struct rtw89_p2p_noa_setter *setter = &rtwvif->p2p_noa;
struct rtw89_p2p_noa_ie *ie = &setter->ie;
struct rtw89_p2p_ie_head *p2p_head = &ie->p2p_head;
struct rtw89_noa_attr_head *noa_head = &ie->noa_head;
if (setter->noa_count) {
setter->noa_index++;
setter->noa_count = 0;
}
memset(ie, 0, sizeof(*ie));
p2p_head->eid = WLAN_EID_VENDOR_SPECIFIC;
p2p_head->ie_len = 4 + sizeof(*noa_head);
p2p_head->oui[0] = (WLAN_OUI_WFA >> 16) & 0xff;
p2p_head->oui[1] = (WLAN_OUI_WFA >> 8) & 0xff;
p2p_head->oui[2] = (WLAN_OUI_WFA >> 0) & 0xff;
p2p_head->oui_type = WLAN_OUI_TYPE_WFA_P2P;
noa_head->attr_type = IEEE80211_P2P_ATTR_ABSENCE_NOTICE;
noa_head->attr_len = cpu_to_le16(2);
noa_head->index = setter->noa_index;
noa_head->oppps_ctwindow = 0;
}
void rtw89_p2p_noa_append(struct rtw89_vif *rtwvif,
const struct ieee80211_p2p_noa_desc *desc)
{
struct rtw89_p2p_noa_setter *setter = &rtwvif->p2p_noa;
struct rtw89_p2p_noa_ie *ie = &setter->ie;
struct rtw89_p2p_ie_head *p2p_head = &ie->p2p_head;
struct rtw89_noa_attr_head *noa_head = &ie->noa_head;
if (!desc->count || !desc->duration)
return;
if (setter->noa_count >= RTW89_P2P_MAX_NOA_NUM)
return;
p2p_head->ie_len += sizeof(*desc);
le16_add_cpu(&noa_head->attr_len, sizeof(*desc));
ie->noa_desc[setter->noa_count++] = *desc;
}
u8 rtw89_p2p_noa_fetch(struct rtw89_vif *rtwvif, void **data)
{
struct rtw89_p2p_noa_setter *setter = &rtwvif->p2p_noa;
struct rtw89_p2p_noa_ie *ie = &setter->ie;
void *tail;
if (!setter->noa_count)
return 0;
*data = ie;
tail = ie->noa_desc + setter->noa_count;
return tail - *data;
}
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