@@ -2,6 +2,7 @@
/* Copyright (C) 2020 MediaTek Inc. */
#include <linux/etherdevice.h>
+#include <linux/firmware.h>
#include "mt7921.h"
#include "mac.h"
#include "mcu.h"
@@ -65,12 +66,18 @@ mt7921_init_wiphy(struct ieee80211_hw *hw)
hw->sta_data_size = sizeof(struct mt7921_sta);
hw->vif_data_size = sizeof(struct mt7921_vif);
+ if (dev->fw_features & MT7921_FW_CAP_CNM)
+ wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
+ else
+ wiphy->flags &= ~WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
+
wiphy->iface_combinations = if_comb;
wiphy->flags &= ~(WIPHY_FLAG_IBSS_RSN | WIPHY_FLAG_4ADDR_AP |
WIPHY_FLAG_4ADDR_STATION);
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_AP);
wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
+ wiphy->max_remain_on_channel_duration = 5000;
wiphy->max_scan_ie_len = MT76_CONNAC_SCAN_IE_LEN;
wiphy->max_scan_ssids = 4;
wiphy->max_sched_scan_plan_interval =
@@ -129,6 +136,58 @@ mt7921_mac_init_band(struct mt7921_dev *dev, u8 band)
mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN);
}
+u8 mt7921_check_offload_capability(struct device *dev, const char *fw_wm)
+{
+ struct mt7921_fw_features *features = NULL;
+ const struct mt76_connac2_fw_trailer *hdr;
+ struct mt7921_realease_info *rel_info;
+ const struct firmware *fw;
+ int ret, i, offset = 0;
+ const u8 *data, *end;
+
+ ret = request_firmware(&fw, fw_wm, dev);
+ if (ret)
+ return ret;
+
+ if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
+ dev_err(dev, "Invalid firmware\n");
+ return -EINVAL;
+ }
+
+ data = fw->data;
+ hdr = (const void *)(fw->data + fw->size - sizeof(*hdr));
+
+ for (i = 0; i < hdr->n_region; i++) {
+ const struct mt76_connac2_fw_region *region;
+
+ region = (const void *)((const u8 *)hdr -
+ (hdr->n_region - i) * sizeof(*region));
+ offset += le32_to_cpu(region->len);
+ }
+
+ data += offset + 16;
+ rel_info = (struct mt7921_realease_info *)data;
+ data += sizeof(*rel_info);
+ end = data + le16_to_cpu(rel_info->len);
+
+ while (data < end) {
+ rel_info = (struct mt7921_realease_info *)data;
+ data += sizeof(*rel_info);
+
+ if (rel_info->tag == MT7921_FW_TAG_FEATURE) {
+ features = (struct mt7921_fw_features *)data;
+ break;
+ }
+
+ data += le16_to_cpu(rel_info->len) + rel_info->pad_len;
+ }
+
+ release_firmware(fw);
+
+ return features ? features->data : 0;
+}
+EXPORT_SYMBOL_GPL(mt7921_check_offload_capability);
+
int mt7921_mac_init(struct mt7921_dev *dev)
{
int i;
@@ -278,6 +337,10 @@ int mt7921_register_device(struct mt7921_dev *dev)
INIT_WORK(&dev->reset_work, mt7921_mac_reset_work);
INIT_WORK(&dev->init_work, mt7921_init_work);
+ INIT_WORK(&dev->phy.roc_work, mt7921_roc_work);
+ timer_setup(&dev->phy.roc_timer, mt7921_roc_timer, 0);
+ init_waitqueue_head(&dev->phy.roc_wait);
+
dev->pm.idle_timeout = MT7921_PM_TIMEOUT;
dev->pm.stats.last_wake_event = jiffies;
dev->pm.stats.last_doze_event = jiffies;
@@ -386,6 +386,116 @@ static void mt7921_remove_interface(struct ieee80211_hw *hw,
mt76_packet_id_flush(&dev->mt76, &msta->wcid);
}
+static void mt7921_roc_iter(void *priv, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_phy *phy = priv;
+
+ mt7921_mcu_abort_roc(phy, mvif, phy->roc_token_id);
+}
+
+void mt7921_roc_work(struct work_struct *work)
+{
+ struct mt7921_phy *phy;
+
+ phy = (struct mt7921_phy *)container_of(work, struct mt7921_phy,
+ roc_work);
+
+ if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
+ return;
+
+ mt7921_mutex_acquire(phy->dev);
+ ieee80211_iterate_active_interfaces(phy->mt76->hw,
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ mt7921_roc_iter, phy);
+ mt7921_mutex_release(phy->dev);
+ ieee80211_remain_on_channel_expired(phy->mt76->hw);
+}
+
+void mt7921_roc_timer(struct timer_list *timer)
+{
+ struct mt7921_phy *phy = from_timer(phy, timer, roc_timer);
+
+ ieee80211_queue_work(phy->mt76->hw, &phy->roc_work);
+}
+
+static int mt7921_abort_roc(struct mt7921_phy *phy, struct mt7921_vif *vif)
+{
+ int err;
+
+ if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state))
+ return 0;
+
+ del_timer_sync(&phy->roc_timer);
+ cancel_work_sync(&phy->roc_work);
+ err = mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id);
+ clear_bit(MT76_STATE_ROC, &phy->mt76->state);
+
+ return err;
+}
+
+static int mt7921_set_roc(struct mt7921_phy *phy,
+ struct mt7921_vif *vif,
+ struct ieee80211_channel *chan,
+ int duration,
+ enum mt7921_roc_req type)
+{
+ int err;
+
+ if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state))
+ return -EBUSY;
+
+ phy->roc_grant = false;
+
+ err = mt7921_mcu_set_roc(phy, vif, chan, duration, type,
+ ++phy->roc_token_id);
+ if (err < 0) {
+ clear_bit(MT76_STATE_ROC, &phy->mt76->state);
+ goto out;
+ }
+
+ if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) {
+ mt7921_mcu_abort_roc(phy, vif, phy->roc_token_id);
+ clear_bit(MT76_STATE_ROC, &phy->mt76->state);
+ err = -ETIMEDOUT;
+ }
+
+out:
+ return err;
+}
+
+static int mt7921_remain_on_channel(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_channel *chan,
+ int duration,
+ enum ieee80211_roc_type type)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ int err;
+
+ mt7921_mutex_acquire(phy->dev);
+ err = mt7921_set_roc(phy, mvif, chan, duration, MT7921_ROC_REQ_ROC);
+ mt7921_mutex_release(phy->dev);
+
+ return err;
+}
+
+static int mt7921_cancel_remain_on_channel(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ int err;
+
+ mt7921_mutex_acquire(phy->dev);
+ err = mt7921_abort_roc(phy, mvif);
+ mt7921_mutex_release(phy->dev);
+
+ return err;
+}
+
static int mt7921_set_channel(struct mt7921_phy *phy)
{
struct mt7921_dev *dev = phy->dev;
@@ -1573,6 +1683,61 @@ mt7921_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
mt7921_mutex_release(dev);
}
+const struct ieee80211_ops mt7921_ops_chanctx = {
+ .tx = mt7921_tx,
+ .start = mt7921_start,
+ .stop = mt7921_stop,
+ .add_interface = mt7921_add_interface,
+ .remove_interface = mt7921_remove_interface,
+ .config = mt7921_config,
+ .conf_tx = mt7921_conf_tx,
+ .configure_filter = mt7921_configure_filter,
+ .bss_info_changed = mt7921_bss_info_changed,
+ .start_ap = mt7921_start_ap,
+ .stop_ap = mt7921_stop_ap,
+ .sta_state = mt7921_sta_state,
+ .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
+ .set_key = mt7921_set_key,
+ .sta_set_decap_offload = mt7921_sta_set_decap_offload,
+#if IS_ENABLED(CONFIG_IPV6)
+ .ipv6_addr_change = mt7921_ipv6_addr_change,
+#endif /* CONFIG_IPV6 */
+ .ampdu_action = mt7921_ampdu_action,
+ .set_rts_threshold = mt7921_set_rts_threshold,
+ .wake_tx_queue = mt76_wake_tx_queue,
+ .release_buffered_frames = mt76_release_buffered_frames,
+ .channel_switch_beacon = mt7921_channel_switch_beacon,
+ .get_txpower = mt76_get_txpower,
+ .get_stats = mt7921_get_stats,
+ .get_et_sset_count = mt7921_get_et_sset_count,
+ .get_et_strings = mt7921_get_et_strings,
+ .get_et_stats = mt7921_get_et_stats,
+ .get_tsf = mt7921_get_tsf,
+ .set_tsf = mt7921_set_tsf,
+ .get_survey = mt76_get_survey,
+ .get_antenna = mt76_get_antenna,
+ .set_antenna = mt7921_set_antenna,
+ .set_coverage_class = mt7921_set_coverage_class,
+ .hw_scan = mt7921_hw_scan,
+ .cancel_hw_scan = mt7921_cancel_hw_scan,
+ .sta_statistics = mt7921_sta_statistics,
+ .sched_scan_start = mt7921_start_sched_scan,
+ .sched_scan_stop = mt7921_stop_sched_scan,
+ CFG80211_TESTMODE_CMD(mt7921_testmode_cmd)
+ CFG80211_TESTMODE_DUMP(mt7921_testmode_dump)
+#ifdef CONFIG_PM
+ .suspend = mt7921_suspend,
+ .resume = mt7921_resume,
+ .set_wakeup = mt7921_set_wakeup,
+ .set_rekey_data = mt7921_set_rekey_data,
+#endif /* CONFIG_PM */
+ .flush = mt7921_flush,
+ .set_sar_specs = mt7921_set_sar_specs,
+ .remain_on_channel = mt7921_remain_on_channel,
+ .cancel_remain_on_channel = mt7921_cancel_remain_on_channel,
+};
+EXPORT_SYMBOL_GPL(mt7921_ops_chanctx);
+
const struct ieee80211_ops mt7921_ops = {
.tx = mt7921_tx,
.start = mt7921_start,
@@ -154,6 +154,29 @@ void mt7921_mcu_set_suspend_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
#endif /* CONFIG_PM */
+static void
+mt7921_mcu_uni_roc_event(struct mt7921_dev *dev, struct sk_buff *skb)
+{
+ struct mt7921_roc_grant_tlv *grant;
+ struct mt76_connac2_mcu_rxd *rxd;
+ int duration;
+
+ rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
+ grant = (struct mt7921_roc_grant_tlv *)(rxd->tlv + 4);
+
+ /* should never happen */
+ WARN_ON_ONCE((le16_to_cpu(grant->tag) != UNI_EVENT_ROC_GRANT));
+
+ if (grant->reqtype == MT7921_ROC_REQ_ROC)
+ ieee80211_ready_on_channel(dev->mt76.phy.hw);
+
+ dev->phy.roc_grant = true;
+ wake_up(&dev->phy.roc_wait);
+ duration = le32_to_cpu(grant->max_interval);
+ mod_timer(&dev->phy.roc_timer,
+ round_jiffies_up(jiffies + msecs_to_jiffies(duration)));
+}
+
static void
mt7921_mcu_scan_event(struct mt7921_dev *dev, struct sk_buff *skb)
{
@@ -295,6 +318,7 @@ mt7921_mcu_uni_rx_unsolicited_event(struct mt7921_dev *dev,
switch (rxd->eid) {
case MCU_UNI_EVENT_ROC:
+ mt7921_mcu_uni_roc_event(dev, skb);
break;
default:
break;
@@ -32,6 +32,9 @@
#define MT7921_MCU_INIT_RETRY_COUNT 10
#define MT7921_WFSYS_INIT_RETRY_COUNT 2
+#define MT7921_FW_TAG_FEATURE 4
+#define MT7921_FW_CAP_CNM BIT(7)
+
#define MT7921_FIRMWARE_WM "mediatek/WIFI_RAM_CODE_MT7961_1.bin"
#define MT7921_ROM_PATCH "mediatek/WIFI_MT7961_patch_mcu_1_2_hdr.bin"
@@ -67,6 +70,41 @@ enum mt7921_roc_req {
MT7921_ROC_REQ_NUM
};
+enum {
+ UNI_EVENT_ROC_GRANT = 0,
+ UNI_EVENT_ROC_TAG_NUM
+};
+
+struct mt7921_realease_info {
+ __le16 len;
+ u8 pad_len;
+ u8 tag;
+} __packed;
+
+struct mt7921_fw_features {
+ u8 segment;
+ u8 data;
+ u8 rsv[14];
+} __packed;
+
+struct mt7921_roc_grant_tlv {
+ __le16 tag;
+ __le16 len;
+ u8 bss_idx;
+ u8 tokenid;
+ u8 status;
+ u8 primarychannel;
+ u8 rfsco;
+ u8 rfband;
+ u8 channelwidth;
+ u8 centerfreqseg1;
+ u8 centerfreqseg2;
+ u8 reqtype;
+ u8 dbdcband;
+ u8 rsv[1];
+ __le32 max_interval;
+} __packed;
+
enum mt7921_sdio_pkt_type {
MT7921_SDIO_TXD,
MT7921_SDIO_DATA,
@@ -214,6 +252,12 @@ struct mt7921_phy {
#endif
struct mt7921_clc *clc[MT7921_CLC_MAX_NUM];
+
+ struct work_struct roc_work;
+ struct timer_list roc_timer;
+ wait_queue_head_t roc_wait;
+ u8 roc_token_id;
+ bool roc_grant;
};
#define mt7921_init_reset(dev) ((dev)->hif_ops->init_reset(dev))
@@ -250,6 +294,7 @@ struct mt7921_dev {
struct work_struct init_work;
u8 fw_debug;
+ u8 fw_features;
struct mt76_connac_pm pm;
struct mt76_connac_coredump coredump;
@@ -312,6 +357,7 @@ mt7921_hw_dev(struct ieee80211_hw *hw)
mt76_connac_mutex_release(&(dev)->mt76, &(dev)->pm)
extern const struct ieee80211_ops mt7921_ops;
+extern const struct ieee80211_ops mt7921_ops_chanctx;
u32 mt7921_reg_map(struct mt7921_dev *dev, u32 addr);
@@ -439,6 +485,8 @@ int mt7921_mcu_uni_rx_ba(struct mt7921_dev *dev,
struct ieee80211_ampdu_params *params,
bool enable);
void mt7921_scan_work(struct work_struct *work);
+void mt7921_roc_work(struct work_struct *work);
+void mt7921_roc_timer(struct timer_list *timer);
int mt7921_mcu_uni_bss_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif);
int mt7921_mcu_drv_pmctrl(struct mt7921_dev *dev);
int mt7921_mcu_fw_pmctrl(struct mt7921_dev *dev);
@@ -527,4 +575,5 @@ int mt7921_mcu_set_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
enum mt7921_roc_req type, u8 token_id);
int mt7921_mcu_abort_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
u8 token_id);
+u8 mt7921_check_offload_capability(struct device *dev, const char *fw_wm);
#endif
@@ -13,10 +13,14 @@
#include "../trace.h"
static const struct pci_device_id mt7921_pci_device_table[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7961) },
- { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7922) },
- { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0608) },
- { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0616) },
+ { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7961),
+ .driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM },
+ { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7922),
+ .driver_data = (kernel_ulong_t)MT7922_FIRMWARE_WM },
+ { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0608),
+ .driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM },
+ { PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x0616),
+ .driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM },
{ },
};
@@ -253,9 +257,11 @@ static int mt7921_pci_probe(struct pci_dev *pdev,
.fw_own = mt7921e_mcu_fw_pmctrl,
};
+ const struct ieee80211_ops *ops;
struct mt76_bus_ops *bus_ops;
struct mt7921_dev *dev;
struct mt76_dev *mdev;
+ u8 features;
int ret;
ret = pcim_enable_device(pdev);
@@ -279,8 +285,14 @@ static int mt7921_pci_probe(struct pci_dev *pdev,
if (mt7921_disable_aspm)
mt76_pci_disable_aspm(pdev);
- mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt7921_ops,
- &drv_ops);
+ features = mt7921_check_offload_capability(&pdev->dev, (const char *)
+ id->driver_data);
+ if (features & MT7921_FW_CAP_CNM)
+ ops = &mt7921_ops_chanctx;
+ else
+ ops = &mt7921_ops;
+
+ mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), ops, &drv_ops);
if (!mdev) {
ret = -ENOMEM;
goto err_free_pci_vec;
@@ -289,8 +301,8 @@ static int mt7921_pci_probe(struct pci_dev *pdev,
pci_set_drvdata(pdev, mdev);
dev = container_of(mdev, struct mt7921_dev, mt76);
+ dev->fw_features = features;
dev->hif_ops = &mt7921_pcie_ops;
-
mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]);
tasklet_init(&dev->irq_tasklet, mt7921_irq_tasklet, (unsigned long)dev);
@@ -17,7 +17,8 @@
#include "mcu.h"
static const struct sdio_device_id mt7921s_table[] = {
- { SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7901) },
+ { SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7901),
+ .driver_data = (kernel_ulong_t)MT7921_FIRMWARE_WM },
{ } /* Terminating entry */
};
@@ -122,18 +123,26 @@ static int mt7921s_probe(struct sdio_func *func,
.fw_own = mt7921s_mcu_fw_pmctrl,
};
+ const struct ieee80211_ops *ops;
struct mt7921_dev *dev;
struct mt76_dev *mdev;
+ u8 features;
int ret;
- mdev = mt76_alloc_device(&func->dev, sizeof(*dev), &mt7921_ops,
- &drv_ops);
+ features = mt7921_check_offload_capability(&func->dev, (const char *)
+ id->driver_data);
+ if (features & MT7921_FW_CAP_CNM)
+ ops = &mt7921_ops_chanctx;
+ else
+ ops = &mt7921_ops;
+
+ mdev = mt76_alloc_device(&func->dev, sizeof(*dev), ops, &drv_ops);
if (!mdev)
return -ENOMEM;
dev = container_of(mdev, struct mt7921_dev, mt76);
+ dev->fw_features = features;
dev->hif_ops = &mt7921_sdio_ops;
-
sdio_set_drvdata(func, dev);
ret = mt76s_init(mdev, func, &mt7921s_ops);
@@ -13,7 +13,8 @@
#include "mac.h"
static const struct usb_device_id mt7921u_device_table[] = {
- { USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7961, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7961, 0xff, 0xff, 0xff),
+ .driver_info = (kernel_ulong_t)MT7921_FIRMWARE_WM },
{ },
};
@@ -204,10 +205,18 @@ static int mt7921u_probe(struct usb_interface *usb_intf,
struct ieee80211_hw *hw;
struct mt7921_dev *dev;
struct mt76_dev *mdev;
+ const void *ops_src;
+ u8 features;
int ret;
- ops = devm_kmemdup(&usb_intf->dev, &mt7921_ops, sizeof(mt7921_ops),
- GFP_KERNEL);
+ features = mt7921_check_offload_capability(&usb_intf->dev, (const char *)
+ id->driver_info);
+ if (features & MT7921_FW_CAP_CNM)
+ ops_src = &mt7921_ops_chanctx;
+ else
+ ops_src = &mt7921_ops;
+
+ ops = devm_kmemdup(&usb_intf->dev, ops_src, sizeof(*ops), GFP_KERNEL);
if (!ops)
return -ENOMEM;
@@ -218,6 +227,7 @@ static int mt7921u_probe(struct usb_interface *usb_intf,
return -ENOMEM;
dev = container_of(mdev, struct mt7921_dev, mt76);
+ dev->fw_features = features;
dev->hif_ops = &hif_ops;
udev = usb_get_dev(udev);