// SPDX-License-Identifier: ISC /* Copyright (C) 2020 MediaTek Inc. * * Author: Lorenzo Bianconi * Sean Wang */ #include #include #include #include "mt7615.h" #include "mac.h" #include "mcu.h" #include "regs.h" const u32 mt7663_usb_sdio_reg_map[] = { [MT_TOP_CFG_BASE] = 0x80020000, [MT_HW_BASE] = 0x80000000, [MT_DMA_SHDL_BASE] = 0x5000a000, [MT_HIF_BASE] = 0x50000000, [MT_CSR_BASE] = 0x40000000, [MT_EFUSE_ADDR_BASE] = 0x78011000, [MT_TOP_MISC_BASE] = 0x81020000, [MT_PLE_BASE] = 0x82060000, [MT_PSE_BASE] = 0x82068000, [MT_PP_BASE] = 0x8206c000, [MT_WTBL_BASE_ADDR] = 0x820e0000, [MT_CFG_BASE] = 0x820f0000, [MT_AGG_BASE] = 0x820f2000, [MT_ARB_BASE] = 0x820f3000, [MT_TMAC_BASE] = 0x820f4000, [MT_RMAC_BASE] = 0x820f5000, [MT_DMA_BASE] = 0x820f7000, [MT_PF_BASE] = 0x820f8000, [MT_WTBL_BASE_ON] = 0x820f9000, [MT_WTBL_BASE_OFF] = 0x820f9800, [MT_LPON_BASE] = 0x820fb000, [MT_MIB_BASE] = 0x820fd000, }; EXPORT_SYMBOL_GPL(mt7663_usb_sdio_reg_map); static void mt7663_usb_sdio_write_txwi(struct mt7615_dev *dev, struct mt76_wcid *wcid, enum mt76_txq_id qid, struct ieee80211_sta *sta, struct sk_buff *skb) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_key_conf *key = info->control.hw_key; __le32 *txwi; int pid; if (!wcid) wcid = &dev->mt76.global_wcid; pid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb); txwi = (__le32 *)(skb->data - MT_USB_TXD_SIZE); memset(txwi, 0, MT_USB_TXD_SIZE); mt7615_mac_write_txwi(dev, txwi, skb, wcid, sta, pid, key, false); skb_push(skb, MT_USB_TXD_SIZE); } static int mt7663_usb_sdio_set_rates(struct mt7615_dev *dev, struct mt7615_wtbl_rate_desc *wrd) { struct mt7615_rate_desc *rate = &wrd->rate; struct mt7615_sta *sta = wrd->sta; u32 w5, w27, addr, val; u16 idx; lockdep_assert_held(&dev->mt76.mutex); if (!sta) return -EINVAL; if (!mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000)) return -ETIMEDOUT; addr = mt7615_mac_wtbl_addr(dev, sta->wcid.idx); w27 = mt76_rr(dev, addr + 27 * 4); w27 &= ~MT_WTBL_W27_CC_BW_SEL; w27 |= FIELD_PREP(MT_WTBL_W27_CC_BW_SEL, rate->bw); w5 = mt76_rr(dev, addr + 5 * 4); w5 &= ~(MT_WTBL_W5_BW_CAP | MT_WTBL_W5_CHANGE_BW_RATE | MT_WTBL_W5_MPDU_OK_COUNT | MT_WTBL_W5_MPDU_FAIL_COUNT | MT_WTBL_W5_RATE_IDX); w5 |= FIELD_PREP(MT_WTBL_W5_BW_CAP, rate->bw) | FIELD_PREP(MT_WTBL_W5_CHANGE_BW_RATE, rate->bw_idx ? rate->bw_idx - 1 : 7); mt76_wr(dev, MT_WTBL_RIUCR0, w5); mt76_wr(dev, MT_WTBL_RIUCR1, FIELD_PREP(MT_WTBL_RIUCR1_RATE0, rate->probe_val) | FIELD_PREP(MT_WTBL_RIUCR1_RATE1, rate->val[0]) | FIELD_PREP(MT_WTBL_RIUCR1_RATE2_LO, rate->val[1])); mt76_wr(dev, MT_WTBL_RIUCR2, FIELD_PREP(MT_WTBL_RIUCR2_RATE2_HI, rate->val[1] >> 8) | FIELD_PREP(MT_WTBL_RIUCR2_RATE3, rate->val[1]) | FIELD_PREP(MT_WTBL_RIUCR2_RATE4, rate->val[2]) | FIELD_PREP(MT_WTBL_RIUCR2_RATE5_LO, rate->val[2])); mt76_wr(dev, MT_WTBL_RIUCR3, FIELD_PREP(MT_WTBL_RIUCR3_RATE5_HI, rate->val[2] >> 4) | FIELD_PREP(MT_WTBL_RIUCR3_RATE6, rate->val[3]) | FIELD_PREP(MT_WTBL_RIUCR3_RATE7, rate->val[3])); mt76_wr(dev, MT_WTBL_UPDATE, FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, sta->wcid.idx) | MT_WTBL_UPDATE_RATE_UPDATE | MT_WTBL_UPDATE_TX_COUNT_CLEAR); mt76_wr(dev, addr + 27 * 4, w27); sta->rate_probe = sta->rateset[rate->rateset].probe_rate.idx != -1; idx = sta->vif->mt76.omac_idx; idx = idx > HW_BSSID_MAX ? HW_BSSID_0 : idx; addr = idx > 1 ? MT_LPON_TCR2(idx): MT_LPON_TCR0(idx); mt76_set(dev, addr, MT_LPON_TCR_MODE); /* TSF read */ val = mt76_rr(dev, MT_LPON_UTTR0); sta->rate_set_tsf = (val & ~BIT(0)) | rate->rateset; if (!(sta->wcid.tx_info & MT_WCID_TX_INFO_SET)) mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000); sta->rate_count = 2 * MT7615_RATE_RETRY * sta->n_rates; sta->wcid.tx_info |= MT_WCID_TX_INFO_SET; return 0; } static void mt7663_usb_sdio_rate_work(struct work_struct *work) { struct mt7615_wtbl_rate_desc *wrd, *wrd_next; struct list_head wrd_list; struct mt7615_dev *dev; dev = (struct mt7615_dev *)container_of(work, struct mt7615_dev, rate_work); INIT_LIST_HEAD(&wrd_list); spin_lock_bh(&dev->mt76.lock); list_splice_init(&dev->wrd_head, &wrd_list); spin_unlock_bh(&dev->mt76.lock); list_for_each_entry_safe(wrd, wrd_next, &wrd_list, node) { list_del(&wrd->node); mt7615_mutex_acquire(dev); mt7663_usb_sdio_set_rates(dev, wrd); mt7615_mutex_release(dev); kfree(wrd); } } bool mt7663_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update) { struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); mt7615_mutex_acquire(dev); mt7615_mac_sta_poll(dev); mt7615_mutex_release(dev); return 0; } EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_status_data); void mt7663_usb_sdio_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e) { unsigned int headroom = MT_USB_TXD_SIZE; if (mt76_is_usb(mdev)) headroom += MT_USB_HDR_SIZE; skb_pull(e->skb, headroom); mt76_tx_complete_skb(mdev, e->wcid, e->skb); } EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_complete_skb); int mt7663_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, enum mt76_txq_id qid, struct mt76_wcid *wcid, struct ieee80211_sta *sta, struct mt76_tx_info *tx_info) { struct mt7615_sta *msta = container_of(wcid, struct mt7615_sta, wcid); struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); struct sk_buff *skb = tx_info->skb; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); int pad; if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) && !msta->rate_probe) { /* request to configure sampling rate */ spin_lock_bh(&dev->mt76.lock); mt7615_mac_set_rates(&dev->phy, msta, &info->control.rates[0], msta->rates); spin_unlock_bh(&dev->mt76.lock); } mt7663_usb_sdio_write_txwi(dev, wcid, qid, sta, skb); if (mt76_is_usb(mdev)) { u32 len = skb->len; put_unaligned_le32(len, skb_push(skb, sizeof(len))); pad = round_up(skb->len, 4) + 4 - skb->len; } else { pad = round_up(skb->len, 4) - skb->len; } return mt76_skb_adjust_pad(skb, pad); } EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_prepare_skb); static int mt7663u_dma_sched_init(struct mt7615_dev *dev) { int i; mt76_rmw(dev, MT_DMA_SHDL(MT_DMASHDL_PKT_MAX_SIZE), MT_DMASHDL_PKT_MAX_SIZE_PLE | MT_DMASHDL_PKT_MAX_SIZE_PSE, FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PLE, 1) | FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PSE, 8)); /* disable refill group 5 - group 15 and raise group 2 * and 3 as high priority. */ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_REFILL), 0xffe00006); mt76_clear(dev, MT_DMA_SHDL(MT_DMASHDL_PAGE), BIT(16)); for (i = 0; i < 5; i++) mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_GROUP_QUOTA(i)), FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MIN, 0x3) | FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MAX, 0x1ff)); mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(0)), 0x42104210); mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(1)), 0x42104210); mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(2)), 0x4444); /* group pririority from high to low: * 15 (cmd groups) > 4 > 3 > 2 > 1 > 0. */ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET0), 0x6501234f); mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET1), 0xedcba987); mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_OPTIONAL), 0x7004801c); mt76_wr(dev, MT_UDMA_WLCFG_1, FIELD_PREP(MT_WL_TX_TMOUT_LMT, 80000) | FIELD_PREP(MT_WL_RX_AGG_PKT_LMT, 1)); /* setup UDMA Rx Flush */ mt76_clear(dev, MT_UDMA_WLCFG_0, MT_WL_RX_FLUSH); /* hif reset */ mt76_set(dev, MT_HIF_RST, MT_HIF_LOGIC_RST_N); mt76_set(dev, MT_UDMA_WLCFG_0, MT_WL_RX_AGG_EN | MT_WL_RX_EN | MT_WL_TX_EN | MT_WL_RX_MPSZ_PAD0 | MT_TICK_1US_EN | MT_WL_TX_TMOUT_FUNC_EN); mt76_rmw(dev, MT_UDMA_WLCFG_0, MT_WL_RX_AGG_LMT | MT_WL_RX_AGG_TO, FIELD_PREP(MT_WL_RX_AGG_LMT, 32) | FIELD_PREP(MT_WL_RX_AGG_TO, 100)); return 0; } static int mt7663_usb_sdio_init_hardware(struct mt7615_dev *dev) { int ret, idx; ret = mt7615_eeprom_init(dev, MT_EFUSE_BASE); if (ret < 0) return ret; if (mt76_is_usb(&dev->mt76)) { ret = mt7663u_dma_sched_init(dev); if (ret) return ret; } set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); /* Beacon and mgmt frames should occupy wcid 0 */ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); if (idx) return -ENOSPC; dev->mt76.global_wcid.idx = idx; dev->mt76.global_wcid.hw_key_idx = -1; rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); return 0; } int mt7663_usb_sdio_register_device(struct mt7615_dev *dev) { struct ieee80211_hw *hw = mt76_hw(dev); int err; INIT_WORK(&dev->rate_work, mt7663_usb_sdio_rate_work); INIT_LIST_HEAD(&dev->wrd_head); mt7615_init_device(dev); err = mt7663_usb_sdio_init_hardware(dev); if (err) return err; hw->extra_tx_headroom += MT_USB_TXD_SIZE; if (mt76_is_usb(&dev->mt76)) { hw->extra_tx_headroom += MT_USB_HDR_SIZE; /* check hw sg support in order to enable AMSDU */ if (dev->mt76.usb.sg_en) hw->max_tx_fragments = MT_HW_TXP_MAX_BUF_NUM; else hw->max_tx_fragments = 1; } err = mt76_register_device(&dev->mt76, true, mt7615_rates, ARRAY_SIZE(mt7615_rates)); if (err < 0) return err; if (!dev->mt76.usb.sg_en) { struct ieee80211_sta_vht_cap *vht_cap; /* decrease max A-MSDU size if SG is not supported */ vht_cap = &dev->mphy.sband_5g.sband.vht_cap; vht_cap->cap &= ~IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454; } ieee80211_queue_work(hw, &dev->mcu_work); mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband); mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband); return mt7615_init_debugfs(dev); } EXPORT_SYMBOL_GPL(mt7663_usb_sdio_register_device); MODULE_AUTHOR("Lorenzo Bianconi "); MODULE_AUTHOR("Sean Wang "); MODULE_LICENSE("Dual BSD/GPL");