| // SPDX-License-Identifier: ISC |
| /* Copyright (C) 2020 MediaTek Inc. |
| * |
| * Author: Lorenzo Bianconi <lorenzo@kernel.org> |
| * Sean Wang <sean.wang@mediatek.com> |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/usb.h> |
| |
| #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 ieee80211_key_conf *key, int pid, |
| struct sk_buff *skb) |
| { |
| __le32 *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, qid, 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_rmw(dev, addr, MT_LPON_TCR_MODE, MT_LPON_TCR_READ); /* 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 false; |
| } |
| 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_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); |
| struct ieee80211_key_conf *key = info->control.hw_key; |
| struct mt7615_sta *msta; |
| int pad, err, pktid; |
| |
| msta = wcid ? container_of(wcid, struct mt7615_sta, wcid) : NULL; |
| if (!wcid) |
| wcid = &dev->mt76.global_wcid; |
| |
| if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) && |
| msta && !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); |
| } |
| |
| pktid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb); |
| mt7663_usb_sdio_write_txwi(dev, wcid, qid, sta, key, pktid, 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; |
| } |
| |
| err = mt76_skb_adjust_pad(skb, pad); |
| if (err) |
| /* Release pktid in case of error. */ |
| idr_remove(&wcid->pktid, pktid); |
| |
| return err; |
| } |
| 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, mt76_rates, |
| ARRAY_SIZE(mt76_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 <lorenzo@kernel.org>"); |
| MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>"); |
| MODULE_LICENSE("Dual BSD/GPL"); |