diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 1308 |
1 files changed, 1308 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c new file mode 100644 index 000000000000..db125cd22b91 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c @@ -0,0 +1,1308 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 MediaTek Inc. */ + +#include <linux/firmware.h> +#include <linux/fs.h> +#include "mt7921.h" +#include "mcu.h" +#include "mac.h" + +struct mt7921_patch_hdr { + char build_date[16]; + char platform[4]; + __be32 hw_sw_ver; + __be32 patch_ver; + __be16 checksum; + u16 reserved; + struct { + __be32 patch_ver; + __be32 subsys; + __be32 feature; + __be32 n_region; + __be32 crc; + u32 reserved[11]; + } desc; +} __packed; + +struct mt7921_patch_sec { + __be32 type; + __be32 offs; + __be32 size; + union { + __be32 spec[13]; + struct { + __be32 addr; + __be32 len; + __be32 sec_key_idx; + __be32 align_len; + u32 reserved[9]; + } info; + }; +} __packed; + +struct mt7921_fw_trailer { + u8 chip_id; + u8 eco_code; + u8 n_region; + u8 format_ver; + u8 format_flag; + u8 reserved[2]; + char fw_ver[10]; + char build_date[15]; + u32 crc; +} __packed; + +struct mt7921_fw_region { + __le32 decomp_crc; + __le32 decomp_len; + __le32 decomp_blk_sz; + u8 reserved[4]; + __le32 addr; + __le32 len; + u8 feature_set; + u8 reserved1[15]; +} __packed; + +#define MT_STA_BFER BIT(0) +#define MT_STA_BFEE BIT(1) + +#define FW_FEATURE_SET_ENCRYPT BIT(0) +#define FW_FEATURE_SET_KEY_IDX GENMASK(2, 1) +#define FW_FEATURE_ENCRY_MODE BIT(4) +#define FW_FEATURE_OVERRIDE_ADDR BIT(5) + +#define DL_MODE_ENCRYPT BIT(0) +#define DL_MODE_KEY_IDX GENMASK(2, 1) +#define DL_MODE_RESET_SEC_IV BIT(3) +#define DL_MODE_WORKING_PDA_CR4 BIT(4) +#define DL_CONFIG_ENCRY_MODE_SEL BIT(6) +#define DL_MODE_NEED_RSP BIT(31) + +#define FW_START_OVERRIDE BIT(0) +#define FW_START_WORKING_PDA_CR4 BIT(2) + +#define PATCH_SEC_TYPE_MASK GENMASK(15, 0) +#define PATCH_SEC_TYPE_INFO 0x2 + +#define to_wcid_lo(id) FIELD_GET(GENMASK(7, 0), (u16)id) +#define to_wcid_hi(id) FIELD_GET(GENMASK(9, 8), (u16)id) + +static enum mt7921_cipher_type +mt7921_mcu_get_cipher(int cipher) +{ + switch (cipher) { + case WLAN_CIPHER_SUITE_WEP40: + return MT_CIPHER_WEP40; + case WLAN_CIPHER_SUITE_WEP104: + return MT_CIPHER_WEP104; + case WLAN_CIPHER_SUITE_TKIP: + return MT_CIPHER_TKIP; + case WLAN_CIPHER_SUITE_AES_CMAC: + return MT_CIPHER_BIP_CMAC_128; + case WLAN_CIPHER_SUITE_CCMP: + return MT_CIPHER_AES_CCMP; + case WLAN_CIPHER_SUITE_CCMP_256: + return MT_CIPHER_CCMP_256; + case WLAN_CIPHER_SUITE_GCMP: + return MT_CIPHER_GCMP; + case WLAN_CIPHER_SUITE_GCMP_256: + return MT_CIPHER_GCMP_256; + case WLAN_CIPHER_SUITE_SMS4: + return MT_CIPHER_WAPI; + default: + return MT_CIPHER_NONE; + } +} + +static u8 mt7921_mcu_chan_bw(struct cfg80211_chan_def *chandef) +{ + static const u8 width_to_bw[] = { + [NL80211_CHAN_WIDTH_40] = CMD_CBW_40MHZ, + [NL80211_CHAN_WIDTH_80] = CMD_CBW_80MHZ, + [NL80211_CHAN_WIDTH_80P80] = CMD_CBW_8080MHZ, + [NL80211_CHAN_WIDTH_160] = CMD_CBW_160MHZ, + [NL80211_CHAN_WIDTH_5] = CMD_CBW_5MHZ, + [NL80211_CHAN_WIDTH_10] = CMD_CBW_10MHZ, + [NL80211_CHAN_WIDTH_20] = CMD_CBW_20MHZ, + [NL80211_CHAN_WIDTH_20_NOHT] = CMD_CBW_20MHZ, + }; + + if (chandef->width >= ARRAY_SIZE(width_to_bw)) + return 0; + + return width_to_bw[chandef->width]; +} + +static int +mt7921_mcu_parse_eeprom(struct mt76_dev *dev, struct sk_buff *skb) +{ + struct mt7921_mcu_eeprom_info *res; + u8 *buf; + + if (!skb) + return -EINVAL; + + skb_pull(skb, sizeof(struct mt7921_mcu_rxd)); + + res = (struct mt7921_mcu_eeprom_info *)skb->data; + buf = dev->eeprom.data + le32_to_cpu(res->addr); + memcpy(buf, res->data, 16); + + return 0; +} + +static int +mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd, + struct sk_buff *skb, int seq) +{ + struct mt7921_mcu_rxd *rxd; + int ret = 0; + + if (!skb) { + dev_err(mdev->dev, "Message %d (seq %d) timeout\n", + cmd, seq); + return -ETIMEDOUT; + } + + rxd = (struct mt7921_mcu_rxd *)skb->data; + if (seq != rxd->seq) + return -EAGAIN; + + switch (cmd) { + case MCU_CMD_PATCH_SEM_CONTROL: + skb_pull(skb, sizeof(*rxd) - 4); + ret = *skb->data; + break; + case MCU_EXT_CMD_GET_TEMP: + skb_pull(skb, sizeof(*rxd) + 4); + ret = le32_to_cpu(*(__le32 *)skb->data); + break; + case MCU_EXT_CMD_EFUSE_ACCESS: + ret = mt7921_mcu_parse_eeprom(mdev, skb); + break; + case MCU_UNI_CMD_DEV_INFO_UPDATE: + case MCU_UNI_CMD_BSS_INFO_UPDATE: + case MCU_UNI_CMD_STA_REC_UPDATE: + case MCU_UNI_CMD_HIF_CTRL: + case MCU_UNI_CMD_OFFLOAD: + case MCU_UNI_CMD_SUSPEND: { + struct mt7921_mcu_uni_event *event; + + skb_pull(skb, sizeof(*rxd)); + event = (struct mt7921_mcu_uni_event *)skb->data; + ret = le32_to_cpu(event->status); + break; + } + case MCU_CMD_REG_READ: { + struct mt7921_mcu_reg_event *event; + + skb_pull(skb, sizeof(*rxd)); + event = (struct mt7921_mcu_reg_event *)skb->data; + ret = (int)le32_to_cpu(event->val); + break; + } + default: + skb_pull(skb, sizeof(struct mt7921_mcu_rxd)); + break; + } + + return ret; +} + +static int +mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb, + int cmd, int *wait_seq) +{ + struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); + int txd_len, mcu_cmd = cmd & MCU_CMD_MASK; + enum mt76_mcuq_id txq = MT_MCUQ_WM; + struct mt7921_uni_txd *uni_txd; + struct mt7921_mcu_txd *mcu_txd; + __le32 *txd; + u32 val; + u8 seq; + + /* TODO: make dynamic based on msg type */ + mdev->mcu.timeout = 20 * HZ; + + seq = ++dev->mt76.mcu.msg_seq & 0xf; + if (!seq) + seq = ++dev->mt76.mcu.msg_seq & 0xf; + + if (cmd == MCU_CMD_FW_SCATTER) { + txq = MT_MCUQ_FWDL; + goto exit; + } + + txd_len = cmd & MCU_UNI_PREFIX ? sizeof(*uni_txd) : sizeof(*mcu_txd); + txd = (__le32 *)skb_push(skb, txd_len); + + val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len) | + FIELD_PREP(MT_TXD0_PKT_FMT, MT_TX_TYPE_CMD) | + FIELD_PREP(MT_TXD0_Q_IDX, MT_TX_MCU_PORT_RX_Q0); + txd[0] = cpu_to_le32(val); + + val = MT_TXD1_LONG_FORMAT | + FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_CMD); + txd[1] = cpu_to_le32(val); + + if (cmd & MCU_UNI_PREFIX) { + uni_txd = (struct mt7921_uni_txd *)txd; + uni_txd->len = cpu_to_le16(skb->len - sizeof(uni_txd->txd)); + uni_txd->option = MCU_CMD_UNI_EXT_ACK; + uni_txd->cid = cpu_to_le16(mcu_cmd); + uni_txd->s2d_index = MCU_S2D_H2N; + uni_txd->pkt_type = MCU_PKT_ID; + uni_txd->seq = seq; + + goto exit; + } + + mcu_txd = (struct mt7921_mcu_txd *)txd; + mcu_txd->len = cpu_to_le16(skb->len - sizeof(mcu_txd->txd)); + mcu_txd->pq_id = cpu_to_le16(MCU_PQ_ID(MT_TX_PORT_IDX_MCU, + MT_TX_MCU_PORT_RX_Q0)); + mcu_txd->pkt_type = MCU_PKT_ID; + mcu_txd->seq = seq; + + switch (cmd & ~MCU_CMD_MASK) { + case MCU_FW_PREFIX: + mcu_txd->set_query = MCU_Q_NA; + mcu_txd->cid = mcu_cmd; + break; + case MCU_CE_PREFIX: + if (cmd & MCU_QUERY_MASK) + mcu_txd->set_query = MCU_Q_QUERY; + else + mcu_txd->set_query = MCU_Q_SET; + mcu_txd->cid = mcu_cmd; + break; + default: + mcu_txd->cid = MCU_CMD_EXT_CID; + if (cmd & MCU_QUERY_PREFIX || cmd == MCU_EXT_CMD_EFUSE_ACCESS) + mcu_txd->set_query = MCU_Q_QUERY; + else + mcu_txd->set_query = MCU_Q_SET; + mcu_txd->ext_cid = mcu_cmd; + mcu_txd->ext_cid_ack = 1; + break; + } + + mcu_txd->s2d_index = MCU_S2D_H2N; + WARN_ON(cmd == MCU_EXT_CMD_EFUSE_ACCESS && + mcu_txd->set_query != MCU_Q_QUERY); + +exit: + if (wait_seq) + *wait_seq = seq; + + return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0); +} + +static void +mt7921_mcu_tx_rate_parse(struct mt76_phy *mphy, + struct mt7921_mcu_peer_cap *peer, + struct rate_info *rate, u16 r) +{ + struct ieee80211_supported_band *sband; + u16 flags = 0; + u8 txmode = FIELD_GET(MT_WTBL_RATE_TX_MODE, r); + u8 gi = 0; + u8 bw = 0; + + rate->mcs = FIELD_GET(MT_WTBL_RATE_MCS, r); + rate->nss = FIELD_GET(MT_WTBL_RATE_NSS, r) + 1; + + switch (peer->bw) { + case IEEE80211_STA_RX_BW_160: + gi = peer->g16; + break; + case IEEE80211_STA_RX_BW_80: + gi = peer->g8; + break; + case IEEE80211_STA_RX_BW_40: + gi = peer->g4; + break; + default: + gi = peer->g2; + break; + } + + gi = txmode >= MT_PHY_TYPE_HE_SU ? + FIELD_GET(MT_WTBL_RATE_HE_GI, gi) : + FIELD_GET(MT_WTBL_RATE_GI, gi); + + switch (txmode) { + case MT_PHY_TYPE_CCK: + case MT_PHY_TYPE_OFDM: + if (mphy->chandef.chan->band == NL80211_BAND_5GHZ) + sband = &mphy->sband_5g.sband; + else + sband = &mphy->sband_2g.sband; + + rate->legacy = sband->bitrates[rate->mcs].bitrate; + break; + case MT_PHY_TYPE_HT: + case MT_PHY_TYPE_HT_GF: + flags |= RATE_INFO_FLAGS_MCS; + + if (gi) + flags |= RATE_INFO_FLAGS_SHORT_GI; + break; + case MT_PHY_TYPE_VHT: + flags |= RATE_INFO_FLAGS_VHT_MCS; + + if (gi) + flags |= RATE_INFO_FLAGS_SHORT_GI; + break; + case MT_PHY_TYPE_HE_SU: + case MT_PHY_TYPE_HE_EXT_SU: + case MT_PHY_TYPE_HE_TB: + case MT_PHY_TYPE_HE_MU: + rate->he_gi = gi; + rate->he_dcm = FIELD_GET(MT_RA_RATE_DCM_EN, r); + + flags |= RATE_INFO_FLAGS_HE_MCS; + break; + default: + break; + } + rate->flags = flags; + + bw = mt7921_mcu_chan_bw(&mphy->chandef) - FIELD_GET(MT_RA_RATE_BW, r); + + switch (bw) { + case IEEE80211_STA_RX_BW_160: + rate->bw = RATE_INFO_BW_160; + break; + case IEEE80211_STA_RX_BW_80: + rate->bw = RATE_INFO_BW_80; + break; + case IEEE80211_STA_RX_BW_40: + rate->bw = RATE_INFO_BW_40; + break; + default: + rate->bw = RATE_INFO_BW_20; + break; + } +} + +static void +mt7921_mcu_tx_rate_report(struct mt7921_dev *dev, struct sk_buff *skb, + u16 wlan_idx) +{ + struct mt7921_mcu_wlan_info_event *wtbl_info = + (struct mt7921_mcu_wlan_info_event *)(skb->data); + struct rate_info rate = {}; + u8 curr_idx = wtbl_info->rate_info.rate_idx; + u16 curr = le16_to_cpu(wtbl_info->rate_info.rate[curr_idx]); + struct mt7921_mcu_peer_cap peer = wtbl_info->peer_cap; + struct mt76_phy *mphy = &dev->mphy; + struct mt7921_sta_stats *stats; + struct mt7921_sta *msta; + struct mt76_wcid *wcid; + + if (wlan_idx >= MT76_N_WCIDS) + return; + wcid = rcu_dereference(dev->mt76.wcid[wlan_idx]); + if (!wcid) { + stats->tx_rate = rate; + return; + } + + msta = container_of(wcid, struct mt7921_sta, wcid); + stats = &msta->stats; + + /* current rate */ + mt7921_mcu_tx_rate_parse(mphy, &peer, &rate, curr); + stats->tx_rate = rate; +} + +static void +mt7921_mcu_scan_event(struct mt7921_dev *dev, struct sk_buff *skb) +{ + struct mt76_phy *mphy = &dev->mt76.phy; + struct mt7921_phy *phy = (struct mt7921_phy *)mphy->priv; + + spin_lock_bh(&dev->mt76.lock); + __skb_queue_tail(&phy->scan_event_list, skb); + spin_unlock_bh(&dev->mt76.lock); + + ieee80211_queue_delayed_work(mphy->hw, &phy->scan_work, + MT7921_HW_SCAN_TIMEOUT); +} + +static void +mt7921_mcu_beacon_loss_event(struct mt7921_dev *dev, struct sk_buff *skb) +{ + struct mt76_connac_beacon_loss_event *event; + struct mt76_phy *mphy; + u8 band_idx = 0; /* DBDC support */ + + skb_pull(skb, sizeof(struct mt7921_mcu_rxd)); + event = (struct mt76_connac_beacon_loss_event *)skb->data; + if (band_idx && dev->mt76.phy2) + mphy = dev->mt76.phy2; + else + mphy = &dev->mt76.phy; + + ieee80211_iterate_active_interfaces_atomic(mphy->hw, + IEEE80211_IFACE_ITER_RESUME_ALL, + mt76_connac_mcu_beacon_loss_iter, event); +} + +static void +mt7921_mcu_bss_event(struct mt7921_dev *dev, struct sk_buff *skb) +{ + struct mt76_phy *mphy = &dev->mt76.phy; + struct mt76_connac_mcu_bss_event *event; + + skb_pull(skb, sizeof(struct mt7921_mcu_rxd)); + event = (struct mt76_connac_mcu_bss_event *)skb->data; + if (event->is_absent) + ieee80211_stop_queues(mphy->hw); + else + ieee80211_wake_queues(mphy->hw); +} + +static void +mt7921_mcu_debug_msg_event(struct mt7921_dev *dev, struct sk_buff *skb) +{ + struct mt7921_mcu_rxd *rxd = (struct mt7921_mcu_rxd *)skb->data; + struct debug_msg { + __le16 id; + u8 type; + u8 flag; + __le32 value; + __le16 len; + u8 content[512]; + } __packed * debug_msg; + u16 cur_len; + int i; + + skb_pull(skb, sizeof(*rxd)); + debug_msg = (struct debug_msg *)skb->data; + + cur_len = min_t(u16, le16_to_cpu(debug_msg->len), 512); + + if (debug_msg->type == 0x3) { + for (i = 0 ; i < cur_len; i++) + if (!debug_msg->content[i]) + debug_msg->content[i] = ' '; + + dev_dbg(dev->mt76.dev, "%s", debug_msg->content); + } +} + +static void +mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb) +{ + struct mt7921_mcu_rxd *rxd = (struct mt7921_mcu_rxd *)skb->data; + + switch (rxd->eid) { + case MCU_EVENT_BSS_BEACON_LOSS: + mt7921_mcu_beacon_loss_event(dev, skb); + break; + case MCU_EVENT_SCHED_SCAN_DONE: + case MCU_EVENT_SCAN_DONE: + mt7921_mcu_scan_event(dev, skb); + return; + case MCU_EVENT_BSS_ABSENCE: + mt7921_mcu_bss_event(dev, skb); + break; + case MCU_EVENT_DBG_MSG: + mt7921_mcu_debug_msg_event(dev, skb); + break; + case MCU_EVENT_COREDUMP: + mt76_connac_mcu_coredump_event(&dev->mt76, skb, + &dev->coredump); + return; + default: + break; + } + dev_kfree_skb(skb); +} + +void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb) +{ + struct mt7921_mcu_rxd *rxd = (struct mt7921_mcu_rxd *)skb->data; + + if (rxd->eid == 0x6) { + mt76_mcu_rx_event(&dev->mt76, skb); + return; + } + + if (rxd->ext_eid == MCU_EXT_EVENT_RATE_REPORT || + rxd->eid == MCU_EVENT_BSS_BEACON_LOSS || + rxd->eid == MCU_EVENT_SCHED_SCAN_DONE || + rxd->eid == MCU_EVENT_BSS_ABSENCE || + rxd->eid == MCU_EVENT_SCAN_DONE || + rxd->eid == MCU_EVENT_DBG_MSG || + rxd->eid == MCU_EVENT_COREDUMP || + !rxd->seq) + mt7921_mcu_rx_unsolicited_event(dev, skb); + else + mt76_mcu_rx_event(&dev->mt76, skb); +} + +/** starec & wtbl **/ +static int +mt7921_mcu_sta_key_tlv(struct mt7921_sta *msta, struct sk_buff *skb, + struct ieee80211_key_conf *key, enum set_key_cmd cmd) +{ + struct mt7921_sta_key_conf *bip = &msta->bip; + struct sta_rec_sec *sec; + struct tlv *tlv; + u32 len = sizeof(*sec); + + tlv = mt76_connac_mcu_add_tlv(skb, STA_REC_KEY_V2, sizeof(*sec)); + + sec = (struct sta_rec_sec *)tlv; + sec->add = cmd; + + if (cmd == SET_KEY) { + struct sec_key *sec_key; + u8 cipher; + + cipher = mt7921_mcu_get_cipher(key->cipher); + if (cipher == MT_CIPHER_NONE) + return -EOPNOTSUPP; + + sec_key = &sec->key[0]; + sec_key->cipher_len = sizeof(*sec_key); + + if (cipher == MT_CIPHER_BIP_CMAC_128) { + sec_key->cipher_id = MT_CIPHER_AES_CCMP; + sec_key->key_id = bip->keyidx; + sec_key->key_len = 16; + memcpy(sec_key->key, bip->key, 16); + + sec_key = &sec->key[1]; + sec_key->cipher_id = MT_CIPHER_BIP_CMAC_128; + sec_key->cipher_len = sizeof(*sec_key); + sec_key->key_len = 16; + memcpy(sec_key->key, key->key, 16); + + sec->n_cipher = 2; + } else { + sec_key->cipher_id = cipher; + sec_key->key_id = key->keyidx; + sec_key->key_len = key->keylen; + memcpy(sec_key->key, key->key, key->keylen); + + if (cipher == MT_CIPHER_TKIP) { + /* Rx/Tx MIC keys are swapped */ + memcpy(sec_key->key + 16, key->key + 24, 8); + memcpy(sec_key->key + 24, key->key + 16, 8); + } + + /* store key_conf for BIP batch update */ + if (cipher == MT_CIPHER_AES_CCMP) { + memcpy(bip->key, key->key, key->keylen); + bip->keyidx = key->keyidx; + } + + len -= sizeof(*sec_key); + sec->n_cipher = 1; + } + } else { + len -= sizeof(sec->key); + sec->n_cipher = 0; + } + sec->len = cpu_to_le16(len); + + return 0; +} + +int mt7921_mcu_add_key(struct mt7921_dev *dev, struct ieee80211_vif *vif, + struct mt7921_sta *msta, struct ieee80211_key_conf *key, + enum set_key_cmd cmd) +{ + struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; + struct sk_buff *skb; + int ret; + + skb = mt76_connac_mcu_alloc_sta_req(&dev->mt76, &mvif->mt76, + &msta->wcid); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + ret = mt7921_mcu_sta_key_tlv(msta, skb, key, cmd); + if (ret) + return ret; + + return mt76_mcu_skb_send_msg(&dev->mt76, skb, + MCU_UNI_CMD_STA_REC_UPDATE, true); +} + +int mt7921_mcu_uni_tx_ba(struct mt7921_dev *dev, + struct ieee80211_ampdu_params *params, + bool enable) +{ + struct mt7921_sta *msta = (struct mt7921_sta *)params->sta->drv_priv; + + if (enable && !params->amsdu) + msta->wcid.amsdu = false; + + return mt76_connac_mcu_sta_ba(&dev->mt76, &msta->vif->mt76, params, + enable, true); +} + +int mt7921_mcu_uni_rx_ba(struct mt7921_dev *dev, + struct ieee80211_ampdu_params *params, + bool enable) +{ + struct mt7921_sta *msta = (struct mt7921_sta *)params->sta->drv_priv; + + return mt76_connac_mcu_sta_ba(&dev->mt76, &msta->vif->mt76, params, + enable, false); +} + +static int mt7921_mcu_restart(struct mt76_dev *dev) +{ + struct { + u8 power_mode; + u8 rsv[3]; + } req = { + .power_mode = 1, + }; + + return mt76_mcu_send_msg(dev, MCU_CMD_NIC_POWER_CTRL, &req, + sizeof(req), false); +} + +static int mt7921_driver_own(struct mt7921_dev *dev) +{ + u32 reg = mt7921_reg_map_l1(dev, MT_TOP_LPCR_HOST_BAND0); + + mt76_wr(dev, reg, MT_TOP_LPCR_HOST_DRV_OWN); + if (!mt76_poll_msec(dev, reg, MT_TOP_LPCR_HOST_FW_OWN, + 0, 500)) { + dev_err(dev->mt76.dev, "Timeout for driver own\n"); + return -EIO; + } + + return 0; +} + +static int mt7921_load_patch(struct mt7921_dev *dev) +{ + const struct mt7921_patch_hdr *hdr; + const struct firmware *fw = NULL; + int i, ret, sem; + + sem = mt76_connac_mcu_patch_sem_ctrl(&dev->mt76, true); + switch (sem) { + case PATCH_IS_DL: + return 0; + case PATCH_NOT_DL_SEM_SUCCESS: + break; + default: + dev_err(dev->mt76.dev, "Failed to get patch semaphore\n"); + return -EAGAIN; + } + + ret = request_firmware(&fw, MT7921_ROM_PATCH, dev->mt76.dev); + if (ret) + goto out; + + if (!fw || !fw->data || fw->size < sizeof(*hdr)) { + dev_err(dev->mt76.dev, "Invalid firmware\n"); + ret = -EINVAL; + goto out; + } + + hdr = (const struct mt7921_patch_hdr *)(fw->data); + + dev_info(dev->mt76.dev, "HW/SW Version: 0x%x, Build Time: %.16s\n", + be32_to_cpu(hdr->hw_sw_ver), hdr->build_date); + + for (i = 0; i < be32_to_cpu(hdr->desc.n_region); i++) { + struct mt7921_patch_sec *sec; + const u8 *dl; + u32 len, addr; + + sec = (struct mt7921_patch_sec *)(fw->data + sizeof(*hdr) + + i * sizeof(*sec)); + if ((be32_to_cpu(sec->type) & PATCH_SEC_TYPE_MASK) != + PATCH_SEC_TYPE_INFO) { + ret = -EINVAL; + goto out; + } + + addr = be32_to_cpu(sec->info.addr); + len = be32_to_cpu(sec->info.len); + dl = fw->data + be32_to_cpu(sec->offs); + + ret = mt76_connac_mcu_init_download(&dev->mt76, addr, len, + DL_MODE_NEED_RSP); + if (ret) { + dev_err(dev->mt76.dev, "Download request failed\n"); + goto out; + } + + ret = mt76_mcu_send_firmware(&dev->mt76, MCU_CMD_FW_SCATTER, + dl, len); + if (ret) { + dev_err(dev->mt76.dev, "Failed to send patch\n"); + goto out; + } + } + + ret = mt76_connac_mcu_start_patch(&dev->mt76); + if (ret) + dev_err(dev->mt76.dev, "Failed to start patch\n"); + +out: + sem = mt76_connac_mcu_patch_sem_ctrl(&dev->mt76, false); + switch (sem) { + case PATCH_REL_SEM_SUCCESS: + break; + default: + ret = -EAGAIN; + dev_err(dev->mt76.dev, "Failed to release patch semaphore\n"); + goto out; + } + release_firmware(fw); + + return ret; +} + +static u32 mt7921_mcu_gen_dl_mode(u8 feature_set, bool is_wa) +{ + u32 ret = 0; + + ret |= (feature_set & FW_FEATURE_SET_ENCRYPT) ? + (DL_MODE_ENCRYPT | DL_MODE_RESET_SEC_IV) : 0; + ret |= (feature_set & FW_FEATURE_ENCRY_MODE) ? + DL_CONFIG_ENCRY_MODE_SEL : 0; + ret |= FIELD_PREP(DL_MODE_KEY_IDX, + FIELD_GET(FW_FEATURE_SET_KEY_IDX, feature_set)); + ret |= DL_MODE_NEED_RSP; + ret |= is_wa ? DL_MODE_WORKING_PDA_CR4 : 0; + + return ret; +} + +static int +mt7921_mcu_send_ram_firmware(struct mt7921_dev *dev, + const struct mt7921_fw_trailer *hdr, + const u8 *data, bool is_wa) +{ + int i, offset = 0; + u32 override = 0, option = 0; + + for (i = 0; i < hdr->n_region; i++) { + const struct mt7921_fw_region *region; + int err; + u32 len, addr, mode; + + region = (const struct mt7921_fw_region *)((const u8 *)hdr - + (hdr->n_region - i) * sizeof(*region)); + mode = mt7921_mcu_gen_dl_mode(region->feature_set, is_wa); + len = le32_to_cpu(region->len); + addr = le32_to_cpu(region->addr); + + if (region->feature_set & FW_FEATURE_OVERRIDE_ADDR) + override = addr; + + err = mt76_connac_mcu_init_download(&dev->mt76, addr, len, + mode); + if (err) { + dev_err(dev->mt76.dev, "Download request failed\n"); + return err; + } + + err = mt76_mcu_send_firmware(&dev->mt76, MCU_CMD_FW_SCATTER, + data + offset, len); + if (err) { + dev_err(dev->mt76.dev, "Failed to send firmware.\n"); + return err; + } + + offset += len; + } + + if (override) + option |= FW_START_OVERRIDE; + + if (is_wa) + option |= FW_START_WORKING_PDA_CR4; + + return mt76_connac_mcu_start_firmware(&dev->mt76, override, option); +} + +static int mt7921_load_ram(struct mt7921_dev *dev) +{ + const struct mt7921_fw_trailer *hdr; + const struct firmware *fw; + int ret; + + ret = request_firmware(&fw, MT7921_FIRMWARE_WM, dev->mt76.dev); + if (ret) + return ret; + + if (!fw || !fw->data || fw->size < sizeof(*hdr)) { + dev_err(dev->mt76.dev, "Invalid firmware\n"); + ret = -EINVAL; + goto out; + } + + hdr = (const struct mt7921_fw_trailer *)(fw->data + fw->size - + sizeof(*hdr)); + + dev_info(dev->mt76.dev, "WM Firmware Version: %.10s, Build Time: %.15s\n", + hdr->fw_ver, hdr->build_date); + + ret = mt7921_mcu_send_ram_firmware(dev, hdr, fw->data, false); + if (ret) { + dev_err(dev->mt76.dev, "Failed to start WM firmware\n"); + goto out; + } + + snprintf(dev->mt76.hw->wiphy->fw_version, + sizeof(dev->mt76.hw->wiphy->fw_version), + "%.10s-%.15s", hdr->fw_ver, hdr->build_date); + +out: + release_firmware(fw); + + return ret; +} + +static int mt7921_load_firmware(struct mt7921_dev *dev) +{ + int ret; + + ret = mt76_get_field(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY); + if (ret) { + dev_dbg(dev->mt76.dev, "Firmware is already download\n"); + return -EIO; + } + + ret = mt7921_load_patch(dev); + if (ret) + return ret; + + ret = mt7921_load_ram(dev); + if (ret) + return ret; + + if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY, + MT_TOP_MISC2_FW_N9_RDY, 1500)) { + dev_err(dev->mt76.dev, "Timeout for initializing firmware\n"); + + return -EIO; + } + + mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false); + +#ifdef CONFIG_PM + dev->mt76.hw->wiphy->wowlan = &mt76_connac_wowlan_support; +#endif /* CONFIG_PM */ + + clear_bit(MT76_STATE_PM, &dev->mphy.state); + + dev_err(dev->mt76.dev, "Firmware init done\n"); + + return 0; +} + +int mt7921_mcu_fw_log_2_host(struct mt7921_dev *dev, u8 ctrl) +{ + struct { + u8 ctrl_val; + u8 pad[3]; + } data = { + .ctrl_val = ctrl + }; + + return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_FWLOG_2_HOST, &data, + sizeof(data), false); +} + +int mt7921_mcu_init(struct mt7921_dev *dev) +{ + static const struct mt76_mcu_ops mt7921_mcu_ops = { + .headroom = sizeof(struct mt7921_mcu_txd), + .mcu_skb_send_msg = mt7921_mcu_send_message, + .mcu_parse_response = mt7921_mcu_parse_response, + .mcu_restart = mt7921_mcu_restart, + }; + int ret; + + dev->mt76.mcu_ops = &mt7921_mcu_ops; + + ret = mt7921_driver_own(dev); + if (ret) + return ret; + + ret = mt7921_load_firmware(dev); + if (ret) + return ret; + + set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); + mt7921_mcu_fw_log_2_host(dev, 1); + + return 0; +} + +void mt7921_mcu_exit(struct mt7921_dev *dev) +{ + u32 reg = mt7921_reg_map_l1(dev, MT_TOP_MISC); + + __mt76_mcu_restart(&dev->mt76); + if (!mt76_poll_msec(dev, reg, MT_TOP_MISC_FW_STATE, + FIELD_PREP(MT_TOP_MISC_FW_STATE, + FW_STATE_FW_DOWNLOAD), 1000)) { + dev_err(dev->mt76.dev, "Failed to exit mcu\n"); + return; + } + + reg = mt7921_reg_map_l1(dev, MT_TOP_LPCR_HOST_BAND0); + mt76_wr(dev, reg, MT_TOP_LPCR_HOST_FW_OWN); + skb_queue_purge(&dev->mt76.mcu.res_q); +} + +int mt7921_mcu_set_tx(struct mt7921_dev *dev, struct ieee80211_vif *vif) +{ +#define WMM_AIFS_SET BIT(0) +#define WMM_CW_MIN_SET BIT(1) +#define WMM_CW_MAX_SET BIT(2) +#define WMM_TXOP_SET BIT(3) +#define WMM_PARAM_SET GENMASK(3, 0) +#define TX_CMD_MODE 1 + struct edca { + u8 queue; + u8 set; + u8 aifs; + u8 cw_min; + __le16 cw_max; + __le16 txop; + }; + struct mt7921_mcu_tx { + u8 total; + u8 action; + u8 valid; + u8 mode; + + struct edca edca[IEEE80211_NUM_ACS]; + } __packed req = { + .valid = true, + .mode = TX_CMD_MODE, + .total = IEEE80211_NUM_ACS, + }; + struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; + int ac; + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + struct ieee80211_tx_queue_params *q = &mvif->queue_params[ac]; + struct edca *e = &req.edca[ac]; + + e->set = WMM_PARAM_SET; + e->queue = ac + mvif->mt76.wmm_idx * MT7921_MAX_WMM_SETS; + e->aifs = q->aifs; + e->txop = cpu_to_le16(q->txop); + + if (q->cw_min) + e->cw_min = fls(q->cw_min); + else + e->cw_min = 5; + + if (q->cw_max) + e->cw_max = cpu_to_le16(fls(q->cw_max)); + else + e->cw_max = cpu_to_le16(10); + } + return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_EDCA_UPDATE, &req, + sizeof(req), true); +} + +int mt7921_mcu_set_chan_info(struct mt7921_phy *phy, int cmd) +{ + struct mt7921_dev *dev = phy->dev; + struct cfg80211_chan_def *chandef = &phy->mt76->chandef; + int freq1 = chandef->center_freq1; + struct { + u8 control_ch; + u8 center_ch; + u8 bw; + u8 tx_streams_num; + u8 rx_streams; /* mask or num */ + u8 switch_reason; + u8 band_idx; + u8 center_ch2; /* for 80+80 only */ + __le16 cac_case; + u8 channel_band; + u8 rsv0; + __le32 outband_freq; + u8 txpower_drop; + u8 ap_bw; + u8 ap_center_ch; + u8 rsv1[57]; + } __packed req = { + .control_ch = chandef->chan->hw_value, + .center_ch = ieee80211_frequency_to_channel(freq1), + .bw = mt7921_mcu_chan_bw(chandef), + .tx_streams_num = hweight8(phy->mt76->antenna_mask), + .rx_streams = phy->mt76->antenna_mask, + .band_idx = phy != &dev->phy, + .channel_band = chandef->chan->band, + }; + + if (dev->mt76.hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) + req.switch_reason = CH_SWITCH_SCAN_BYPASS_DPD; + else if ((chandef->chan->flags & IEEE80211_CHAN_RADAR) && + chandef->chan->dfs_state != NL80211_DFS_AVAILABLE) + req.switch_reason = CH_SWITCH_DFS; + else + req.switch_reason = CH_SWITCH_NORMAL; + + if (cmd == MCU_EXT_CMD_CHANNEL_SWITCH) + req.rx_streams = hweight8(req.rx_streams); + + if (chandef->width == NL80211_CHAN_WIDTH_80P80) { + int freq2 = chandef->center_freq2; + + req.center_ch2 = ieee80211_frequency_to_channel(freq2); + } + + return mt76_mcu_send_msg(&dev->mt76, cmd, &req, sizeof(req), true); +} + +int mt7921_mcu_set_eeprom(struct mt7921_dev *dev) +{ + struct req_hdr { + u8 buffer_mode; + u8 format; + __le16 len; + } __packed req = { + .buffer_mode = EE_MODE_EFUSE, + .format = EE_FORMAT_WHOLE, + }; + + return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_EFUSE_BUFFER_MODE, + &req, sizeof(req), true); +} + +int mt7921_mcu_get_eeprom(struct mt7921_dev *dev, u32 offset) +{ + struct mt7921_mcu_eeprom_info req = { + .addr = cpu_to_le32(round_down(offset, 16)), + }; + struct mt7921_mcu_eeprom_info *res; + struct sk_buff *skb; + int ret; + u8 *buf; + + ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_EXT_CMD_EFUSE_ACCESS, &req, + sizeof(req), true, &skb); + if (ret) + return ret; + + res = (struct mt7921_mcu_eeprom_info *)skb->data; + buf = dev->mt76.eeprom.data + le32_to_cpu(res->addr); + memcpy(buf, res->data, 16); + dev_kfree_skb(skb); + + return 0; +} + +u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u32 wlan_idx) +{ + struct mt7921_mcu_wlan_info wtbl_info = { + .wlan_idx = cpu_to_le32(wlan_idx), + }; + struct sk_buff *skb; + int ret; + + ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_CMD_GET_WTBL, + &wtbl_info, sizeof(wtbl_info), true, + &skb); + if (ret) + return ret; + + mt7921_mcu_tx_rate_report(dev, skb, wlan_idx); + dev_kfree_skb(skb); + + return 0; +} + +int mt7921_mcu_uni_bss_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif) +{ + struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; + struct { + struct { + u8 bss_idx; + u8 pad[3]; + } __packed hdr; + struct ps_tlv { + __le16 tag; + __le16 len; + u8 ps_state; /* 0: device awake + * 1: static power save + * 2: dynamic power saving + * 3: enter TWT power saving + * 4: leave TWT power saving + */ + u8 pad[3]; + } __packed ps; + } __packed ps_req = { + .hdr = { + .bss_idx = mvif->mt76.idx, + }, + .ps = { + .tag = cpu_to_le16(UNI_BSS_INFO_PS), + .len = cpu_to_le16(sizeof(struct ps_tlv)), + .ps_state = vif->bss_conf.ps ? 2 : 0, + }, + }; + + if (vif->type != NL80211_IFTYPE_STATION) + return -EOPNOTSUPP; + + return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_BSS_INFO_UPDATE, + &ps_req, sizeof(ps_req), true); +} + +int mt7921_mcu_uni_bss_bcnft(struct mt7921_dev *dev, struct ieee80211_vif *vif, + bool enable) +{ + struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; + struct { + struct { + u8 bss_idx; + u8 pad[3]; + } __packed hdr; + struct bcnft_tlv { + __le16 tag; + __le16 len; + __le16 bcn_interval; + u8 dtim_period; + u8 pad; + } __packed bcnft; + } __packed bcnft_req = { + .hdr = { + .bss_idx = mvif->mt76.idx, + }, + .bcnft = { + .tag = cpu_to_le16(UNI_BSS_INFO_BCNFT), + .len = cpu_to_le16(sizeof(struct bcnft_tlv)), + .bcn_interval = cpu_to_le16(vif->bss_conf.beacon_int), + .dtim_period = vif->bss_conf.dtim_period, + }, + }; + + if (vif->type != NL80211_IFTYPE_STATION) + return 0; + + return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_BSS_INFO_UPDATE, + &bcnft_req, sizeof(bcnft_req), true); +} + +int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif, + bool enable) +{ + struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; + struct { + u8 bss_idx; + u8 dtim_period; + __le16 aid; + __le16 bcn_interval; + __le16 atim_window; + u8 uapsd; + u8 bmc_delivered_ac; + u8 bmc_triggered_ac; + u8 pad; + } req = { + .bss_idx = mvif->mt76.idx, + .aid = cpu_to_le16(vif->bss_conf.aid), + .dtim_period = vif->bss_conf.dtim_period, + .bcn_interval = cpu_to_le16(vif->bss_conf.beacon_int), + }; + struct { + u8 bss_idx; + u8 pad[3]; + } req_hdr = { + .bss_idx = mvif->mt76.idx, + }; + int err; + + if (vif->type != NL80211_IFTYPE_STATION) + return 0; + + err = mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_BSS_ABORT, &req_hdr, + sizeof(req_hdr), false); + if (err < 0 || !enable) + return err; + + return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_BSS_CONNECTED, &req, + sizeof(req), false); +} + +int mt7921_mcu_drv_pmctrl(struct mt7921_dev *dev) +{ + struct mt76_phy *mphy = &dev->mt76.phy; + int i; + + if (!test_and_clear_bit(MT76_STATE_PM, &mphy->state)) + goto out; + + for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { + mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_CLR_OWN); + if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, + PCIE_LPCR_HOST_OWN_SYNC, 0, 50)) + break; + } + + if (i == MT7921_DRV_OWN_RETRY_COUNT) { + dev_err(dev->mt76.dev, "driver own failed\n"); + return -EIO; + } + +out: + dev->pm.last_activity = jiffies; + + return 0; +} + +int mt7921_mcu_fw_pmctrl(struct mt7921_dev *dev) +{ + struct mt76_phy *mphy = &dev->mt76.phy; + int i; + + if (test_and_set_bit(MT76_STATE_PM, &mphy->state)) + return 0; + + for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) { + mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_SET_OWN); + if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL, + PCIE_LPCR_HOST_OWN_SYNC, 4, 50)) + break; + } + + if (i == MT7921_DRV_OWN_RETRY_COUNT) { + dev_err(dev->mt76.dev, "firmware own failed\n"); + return -EIO; + } + + return 0; +} + +void +mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) +{ + struct mt7921_phy *phy = priv; + struct mt7921_dev *dev = phy->dev; + + if (mt7921_mcu_set_bss_pm(dev, vif, dev->pm.enable)) + return; + + if (dev->pm.enable) { + vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER; + mt76_set(dev, MT_WF_RFCR(0), MT_WF_RFCR_DROP_OTHER_BEACON); + } else { + vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER; + mt76_clear(dev, MT_WF_RFCR(0), MT_WF_RFCR_DROP_OTHER_BEACON); + } +} |