1 files changed, 532 insertions, 0 deletions

diff --git a/drivers/net/wireless/realtek/rtw88/mac80211.c b/drivers/net/wireless/realtek/rtw88/mac80211.c
new file mode 100644
index 0000000..e5e3605
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw88/mac80211.c
@@ -0,0 +1,532 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/* Copyright(c) 2018-2019  Realtek Corporation
+ */
+
+#include "main.h"
+#include "sec.h"
+#include "tx.h"
+#include "fw.h"
+#include "mac.h"
+#include "coex.h"
+#include "ps.h"
+#include "reg.h"
+#include "debug.h"
+
+static void rtw_ops_tx(struct ieee80211_hw *hw,
+		       struct ieee80211_tx_control *control,
+		       struct sk_buff *skb)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_tx_pkt_info pkt_info = {0};
+
+	if (!rtw_flag_check(rtwdev, RTW_FLAG_RUNNING))
+		goto out;
+
+	rtw_tx_pkt_info_update(rtwdev, &pkt_info, control, skb);
+	if (rtw_hci_tx(rtwdev, &pkt_info, skb))
+		goto out;
+
+	return;
+
+out:
+	ieee80211_free_txskb(hw, skb);
+}
+
+static int rtw_ops_start(struct ieee80211_hw *hw)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	int ret;
+
+	mutex_lock(&rtwdev->mutex);
+	ret = rtw_core_start(rtwdev);
+	mutex_unlock(&rtwdev->mutex);
+
+	return ret;
+}
+
+static void rtw_ops_stop(struct ieee80211_hw *hw)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+
+	mutex_lock(&rtwdev->mutex);
+	rtw_core_stop(rtwdev);
+	mutex_unlock(&rtwdev->mutex);
+}
+
+static int rtw_ops_config(struct ieee80211_hw *hw, u32 changed)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	int ret = 0;
+
+	mutex_lock(&rtwdev->mutex);
+
+	if (changed & IEEE80211_CONF_CHANGE_IDLE) {
+		if (hw->conf.flags & IEEE80211_CONF_IDLE) {
+			rtw_enter_ips(rtwdev);
+		} else {
+			ret = rtw_leave_ips(rtwdev);
+			if (ret) {
+				rtw_err(rtwdev, "failed to leave idle state\n");
+				goto out;
+			}
+		}
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL)
+		rtw_set_channel(rtwdev);
+
+out:
+	mutex_unlock(&rtwdev->mutex);
+	return ret;
+}
+
+static const struct rtw_vif_port rtw_vif_port[] = {
+	[0] = {
+		.mac_addr	= {.addr = 0x0610},
+		.bssid		= {.addr = 0x0618},
+		.net_type	= {.addr = 0x0100, .mask = 0x30000},
+		.aid		= {.addr = 0x06a8, .mask = 0x7ff},
+		.bcn_ctrl	= {.addr = 0x0550, .mask = 0xff},
+	},
+	[1] = {
+		.mac_addr	= {.addr = 0x0700},
+		.bssid		= {.addr = 0x0708},
+		.net_type	= {.addr = 0x0100, .mask = 0xc0000},
+		.aid		= {.addr = 0x0710, .mask = 0x7ff},
+		.bcn_ctrl	= {.addr = 0x0551, .mask = 0xff},
+	},
+	[2] = {
+		.mac_addr	= {.addr = 0x1620},
+		.bssid		= {.addr = 0x1628},
+		.net_type	= {.addr = 0x1100, .mask = 0x3},
+		.aid		= {.addr = 0x1600, .mask = 0x7ff},
+		.bcn_ctrl	= {.addr = 0x0578, .mask = 0xff},
+	},
+	[3] = {
+		.mac_addr	= {.addr = 0x1630},
+		.bssid		= {.addr = 0x1638},
+		.net_type	= {.addr = 0x1100, .mask = 0xc},
+		.aid		= {.addr = 0x1604, .mask = 0x7ff},
+		.bcn_ctrl	= {.addr = 0x0579, .mask = 0xff},
+	},
+	[4] = {
+		.mac_addr	= {.addr = 0x1640},
+		.bssid		= {.addr = 0x1648},
+		.net_type	= {.addr = 0x1100, .mask = 0x30},
+		.aid		= {.addr = 0x1608, .mask = 0x7ff},
+		.bcn_ctrl	= {.addr = 0x057a, .mask = 0xff},
+	},
+};
+
+static int rtw_ops_add_interface(struct ieee80211_hw *hw,
+				 struct ieee80211_vif *vif)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
+	enum rtw_net_type net_type;
+	u32 config = 0;
+	u8 port = 0;
+	u8 bcn_ctrl = 0;
+
+	rtwvif->port = port;
+	rtwvif->vif = vif;
+	rtwvif->stats.tx_unicast = 0;
+	rtwvif->stats.rx_unicast = 0;
+	rtwvif->stats.tx_cnt = 0;
+	rtwvif->stats.rx_cnt = 0;
+	rtwvif->in_lps = false;
+	rtwvif->conf = &rtw_vif_port[port];
+
+	mutex_lock(&rtwdev->mutex);
+
+	switch (vif->type) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_MESH_POINT:
+		net_type = RTW_NET_AP_MODE;
+		bcn_ctrl = BIT_EN_BCN_FUNCTION | BIT_DIS_TSF_UDT;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		net_type = RTW_NET_AD_HOC;
+		bcn_ctrl = BIT_EN_BCN_FUNCTION | BIT_DIS_TSF_UDT;
+		break;
+	case NL80211_IFTYPE_STATION:
+	default:
+		net_type = RTW_NET_NO_LINK;
+		bcn_ctrl = BIT_EN_BCN_FUNCTION;
+		break;
+	}
+
+	ether_addr_copy(rtwvif->mac_addr, vif->addr);
+	config |= PORT_SET_MAC_ADDR;
+	rtwvif->net_type = net_type;
+	config |= PORT_SET_NET_TYPE;
+	rtwvif->bcn_ctrl = bcn_ctrl;
+	config |= PORT_SET_BCN_CTRL;
+	rtw_vif_port_config(rtwdev, rtwvif, config);
+
+	mutex_unlock(&rtwdev->mutex);
+
+	rtw_info(rtwdev, "start vif %pM on port %d\n", vif->addr, rtwvif->port);
+	return 0;
+}
+
+static void rtw_ops_remove_interface(struct ieee80211_hw *hw,
+				     struct ieee80211_vif *vif)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
+	u32 config = 0;
+
+	rtw_info(rtwdev, "stop vif %pM on port %d\n", vif->addr, rtwvif->port);
+
+	mutex_lock(&rtwdev->mutex);
+
+	eth_zero_addr(rtwvif->mac_addr);
+	config |= PORT_SET_MAC_ADDR;
+	rtwvif->net_type = RTW_NET_NO_LINK;
+	config |= PORT_SET_NET_TYPE;
+	rtwvif->bcn_ctrl = 0;
+	config |= PORT_SET_BCN_CTRL;
+	rtw_vif_port_config(rtwdev, rtwvif, config);
+
+	mutex_unlock(&rtwdev->mutex);
+}
+
+static void rtw_ops_configure_filter(struct ieee80211_hw *hw,
+				     unsigned int changed_flags,
+				     unsigned int *new_flags,
+				     u64 multicast)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+
+	*new_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_FCSFAIL |
+		      FIF_BCN_PRBRESP_PROMISC;
+
+	mutex_lock(&rtwdev->mutex);
+
+	if (changed_flags & FIF_ALLMULTI) {
+		if (*new_flags & FIF_ALLMULTI)
+			rtwdev->hal.rcr |= BIT_AM | BIT_AB;
+		else
+			rtwdev->hal.rcr &= ~(BIT_AM | BIT_AB);
+	}
+	if (changed_flags & FIF_FCSFAIL) {
+		if (*new_flags & FIF_FCSFAIL)
+			rtwdev->hal.rcr |= BIT_ACRC32;
+		else
+			rtwdev->hal.rcr &= ~(BIT_ACRC32);
+	}
+	if (changed_flags & FIF_OTHER_BSS) {
+		if (*new_flags & FIF_OTHER_BSS)
+			rtwdev->hal.rcr |= BIT_AAP;
+		else
+			rtwdev->hal.rcr &= ~(BIT_AAP);
+	}
+	if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
+		if (*new_flags & FIF_BCN_PRBRESP_PROMISC)
+			rtwdev->hal.rcr &= ~(BIT_CBSSID_BCN | BIT_CBSSID_DATA);
+		else
+			rtwdev->hal.rcr |= BIT_CBSSID_BCN;
+	}
+
+	rtw_dbg(rtwdev, RTW_DBG_RX,
+		"config rx filter, changed=0x%08x, new=0x%08x, rcr=0x%08x\n",
+		changed_flags, *new_flags, rtwdev->hal.rcr);
+
+	rtw_write32(rtwdev, REG_RCR, rtwdev->hal.rcr);
+
+	mutex_unlock(&rtwdev->mutex);
+}
+
+static void rtw_ops_bss_info_changed(struct ieee80211_hw *hw,
+				     struct ieee80211_vif *vif,
+				     struct ieee80211_bss_conf *conf,
+				     u32 changed)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
+	u32 config = 0;
+
+	mutex_lock(&rtwdev->mutex);
+
+	if (changed & BSS_CHANGED_ASSOC) {
+		struct rtw_chip_info *chip = rtwdev->chip;
+		enum rtw_net_type net_type;
+
+		if (conf->assoc) {
+			rtw_coex_connect_notify(rtwdev, COEX_ASSOCIATE_FINISH);
+			net_type = RTW_NET_MGD_LINKED;
+			chip->ops->phy_calibration(rtwdev);
+
+			rtwvif->aid = conf->aid;
+			rtw_add_rsvd_page(rtwdev, RSVD_PS_POLL, true);
+			rtw_add_rsvd_page(rtwdev, RSVD_QOS_NULL, true);
+			rtw_add_rsvd_page(rtwdev, RSVD_NULL, true);
+			rtw_fw_download_rsvd_page(rtwdev, vif);
+			rtw_send_rsvd_page_h2c(rtwdev);
+			rtw_coex_media_status_notify(rtwdev, conf->assoc);
+		} else {
+			net_type = RTW_NET_NO_LINK;
+			rtwvif->aid = 0;
+			rtw_reset_rsvd_page(rtwdev);
+		}
+
+		rtwvif->net_type = net_type;
+		config |= PORT_SET_NET_TYPE;
+		config |= PORT_SET_AID;
+	}
+
+	if (changed & BSS_CHANGED_BSSID) {
+		ether_addr_copy(rtwvif->bssid, conf->bssid);
+		config |= PORT_SET_BSSID;
+	}
+
+	if (changed & BSS_CHANGED_BEACON)
+		rtw_fw_download_rsvd_page(rtwdev, vif);
+
+	rtw_vif_port_config(rtwdev, rtwvif, config);
+
+	mutex_unlock(&rtwdev->mutex);
+}
+
+static u8 rtw_acquire_macid(struct rtw_dev *rtwdev)
+{
+	unsigned long mac_id;
+
+	mac_id = find_first_zero_bit(rtwdev->mac_id_map, RTW_MAX_MAC_ID_NUM);
+	if (mac_id < RTW_MAX_MAC_ID_NUM)
+		set_bit(mac_id, rtwdev->mac_id_map);
+
+	return mac_id;
+}
+
+static void rtw_release_macid(struct rtw_dev *rtwdev, u8 mac_id)
+{
+	clear_bit(mac_id, rtwdev->mac_id_map);
+}
+
+static int rtw_ops_sta_add(struct ieee80211_hw *hw,
+			   struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&rtwdev->mutex);
+
+	si->mac_id = rtw_acquire_macid(rtwdev);
+	if (si->mac_id >= RTW_MAX_MAC_ID_NUM) {
+		ret = -ENOSPC;
+		goto out;
+	}
+
+	si->sta = sta;
+	si->vif = vif;
+	si->init_ra_lv = 1;
+	ewma_rssi_init(&si->avg_rssi);
+
+	rtw_update_sta_info(rtwdev, si);
+	rtw_fw_media_status_report(rtwdev, si->mac_id, true);
+
+	rtwdev->sta_cnt++;
+
+	rtw_info(rtwdev, "sta %pM joined with macid %d\n",
+		 sta->addr, si->mac_id);
+
+out:
+	mutex_unlock(&rtwdev->mutex);
+	return ret;
+}
+
+static int rtw_ops_sta_remove(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif,
+			      struct ieee80211_sta *sta)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv;
+
+	mutex_lock(&rtwdev->mutex);
+
+	rtw_release_macid(rtwdev, si->mac_id);
+	rtw_fw_media_status_report(rtwdev, si->mac_id, false);
+
+	rtwdev->sta_cnt--;
+
+	rtw_info(rtwdev, "sta %pM with macid %d left\n",
+		 sta->addr, si->mac_id);
+
+	mutex_unlock(&rtwdev->mutex);
+	return 0;
+}
+
+static int rtw_ops_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+			   struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+			   struct ieee80211_key_conf *key)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_sec_desc *sec = &rtwdev->sec;
+	u8 hw_key_type;
+	u8 hw_key_idx;
+	int ret = 0;
+
+	switch (key->cipher) {
+	case WLAN_CIPHER_SUITE_WEP40:
+		hw_key_type = RTW_CAM_WEP40;
+		break;
+	case WLAN_CIPHER_SUITE_WEP104:
+		hw_key_type = RTW_CAM_WEP104;
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		hw_key_type = RTW_CAM_TKIP;
+		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+		break;
+	case WLAN_CIPHER_SUITE_CCMP:
+		hw_key_type = RTW_CAM_AES;
+		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
+		break;
+	case WLAN_CIPHER_SUITE_AES_CMAC:
+	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
+	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
+	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
+		/* suppress error messages */
+		return -EOPNOTSUPP;
+	default:
+		return -ENOTSUPP;
+	}
+
+	mutex_lock(&rtwdev->mutex);
+
+	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
+		hw_key_idx = rtw_sec_get_free_cam(sec);
+	} else {
+		/* multiple interfaces? */
+		hw_key_idx = key->keyidx;
+	}
+
+	if (hw_key_idx > sec->total_cam_num) {
+		ret = -ENOSPC;
+		goto out;
+	}
+
+	switch (cmd) {
+	case SET_KEY:
+		/* need sw generated IV */
+		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+		key->hw_key_idx = hw_key_idx;
+		rtw_sec_write_cam(rtwdev, sec, sta, key,
+				  hw_key_type, hw_key_idx);
+		break;
+	case DISABLE_KEY:
+		rtw_sec_clear_cam(rtwdev, sec, key->hw_key_idx);
+		break;
+	}
+
+out:
+	mutex_unlock(&rtwdev->mutex);
+
+	return ret;
+}
+
+static int rtw_ops_ampdu_action(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif,
+				struct ieee80211_ampdu_params *params)
+{
+	struct ieee80211_sta *sta = params->sta;
+	u16 tid = params->tid;
+
+	switch (params->action) {
+	case IEEE80211_AMPDU_TX_START:
+		ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+		break;
+	case IEEE80211_AMPDU_TX_STOP_CONT:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+		ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+		break;
+	case IEEE80211_AMPDU_TX_OPERATIONAL:
+	case IEEE80211_AMPDU_RX_START:
+	case IEEE80211_AMPDU_RX_STOP:
+		break;
+	default:
+		WARN_ON(1);
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}
+
+static void rtw_ops_sw_scan_start(struct ieee80211_hw *hw,
+				  struct ieee80211_vif *vif,
+				  const u8 *mac_addr)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
+	u32 config = 0;
+
+	rtw_leave_lps(rtwdev, rtwvif);
+
+	mutex_lock(&rtwdev->mutex);
+
+	ether_addr_copy(rtwvif->mac_addr, mac_addr);
+	config |= PORT_SET_MAC_ADDR;
+	rtw_vif_port_config(rtwdev, rtwvif, config);
+
+	rtw_coex_scan_notify(rtwdev, COEX_SCAN_START);
+
+	rtw_flag_set(rtwdev, RTW_FLAG_DIG_DISABLE);
+	rtw_flag_set(rtwdev, RTW_FLAG_SCANNING);
+
+	mutex_unlock(&rtwdev->mutex);
+}
+
+static void rtw_ops_sw_scan_complete(struct ieee80211_hw *hw,
+				     struct ieee80211_vif *vif)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+	struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
+	u32 config = 0;
+
+	mutex_lock(&rtwdev->mutex);
+
+	rtw_flag_clear(rtwdev, RTW_FLAG_SCANNING);
+	rtw_flag_clear(rtwdev, RTW_FLAG_DIG_DISABLE);
+
+	ether_addr_copy(rtwvif->mac_addr, vif->addr);
+	config |= PORT_SET_MAC_ADDR;
+	rtw_vif_port_config(rtwdev, rtwvif, config);
+
+	rtw_coex_scan_notify(rtwdev, COEX_SCAN_FINISH);
+
+	mutex_unlock(&rtwdev->mutex);
+}
+
+static void rtw_ops_mgd_prepare_tx(struct ieee80211_hw *hw,
+				   struct ieee80211_vif *vif,
+				   u16 duration)
+{
+	struct rtw_dev *rtwdev = hw->priv;
+
+	mutex_lock(&rtwdev->mutex);
+	rtw_coex_connect_notify(rtwdev, COEX_ASSOCIATE_START);
+	mutex_unlock(&rtwdev->mutex);
+}
+
+const struct ieee80211_ops rtw_ops = {
+	.tx			= rtw_ops_tx,
+	.start			= rtw_ops_start,
+	.stop			= rtw_ops_stop,
+	.config			= rtw_ops_config,
+	.add_interface		= rtw_ops_add_interface,
+	.remove_interface	= rtw_ops_remove_interface,
+	.configure_filter	= rtw_ops_configure_filter,
+	.bss_info_changed	= rtw_ops_bss_info_changed,
+	.sta_add		= rtw_ops_sta_add,
+	.sta_remove		= rtw_ops_sta_remove,
+	.set_key		= rtw_ops_set_key,
+	.ampdu_action		= rtw_ops_ampdu_action,
+	.sw_scan_start		= rtw_ops_sw_scan_start,
+	.sw_scan_complete	= rtw_ops_sw_scan_complete,
+	.mgd_prepare_tx		= rtw_ops_mgd_prepare_tx,
+};
+EXPORT_SYMBOL(rtw_ops);