1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc.
4 * Author: Lorenzo Bianconi <lorenzo@kernel.org>
5 * Sean Wang <sean.wang@mediatek.com>
8 #include <linux/kernel.h>
9 #include <linux/module.h>
10 #include <linux/usb.h>
17 const u32 mt7663_usb_sdio_reg_map[] = {
18 [MT_TOP_CFG_BASE] = 0x80020000,
19 [MT_HW_BASE] = 0x80000000,
20 [MT_DMA_SHDL_BASE] = 0x5000a000,
21 [MT_HIF_BASE] = 0x50000000,
22 [MT_CSR_BASE] = 0x40000000,
23 [MT_EFUSE_ADDR_BASE] = 0x78011000,
24 [MT_TOP_MISC_BASE] = 0x81020000,
25 [MT_PLE_BASE] = 0x82060000,
26 [MT_PSE_BASE] = 0x82068000,
27 [MT_PP_BASE] = 0x8206c000,
28 [MT_WTBL_BASE_ADDR] = 0x820e0000,
29 [MT_CFG_BASE] = 0x820f0000,
30 [MT_AGG_BASE] = 0x820f2000,
31 [MT_ARB_BASE] = 0x820f3000,
32 [MT_TMAC_BASE] = 0x820f4000,
33 [MT_RMAC_BASE] = 0x820f5000,
34 [MT_DMA_BASE] = 0x820f7000,
35 [MT_PF_BASE] = 0x820f8000,
36 [MT_WTBL_BASE_ON] = 0x820f9000,
37 [MT_WTBL_BASE_OFF] = 0x820f9800,
38 [MT_LPON_BASE] = 0x820fb000,
39 [MT_MIB_BASE] = 0x820fd000,
41 EXPORT_SYMBOL_GPL(mt7663_usb_sdio_reg_map);
44 mt7663_usb_sdio_write_txwi(struct mt7615_dev *dev, struct mt76_wcid *wcid,
45 enum mt76_txq_id qid, struct ieee80211_sta *sta,
46 struct ieee80211_key_conf *key, int pid,
49 __le32 *txwi = (__le32 *)(skb->data - MT_USB_TXD_SIZE);
51 memset(txwi, 0, MT_USB_TXD_SIZE);
52 mt7615_mac_write_txwi(dev, txwi, skb, wcid, sta, pid, key, false);
53 skb_push(skb, MT_USB_TXD_SIZE);
56 static int mt7663_usb_sdio_set_rates(struct mt7615_dev *dev,
57 struct mt7615_wtbl_rate_desc *wrd)
59 struct mt7615_rate_desc *rate = &wrd->rate;
60 struct mt7615_sta *sta = wrd->sta;
61 u32 w5, w27, addr, val;
64 lockdep_assert_held(&dev->mt76.mutex);
69 if (!mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000))
72 addr = mt7615_mac_wtbl_addr(dev, sta->wcid.idx);
74 w27 = mt76_rr(dev, addr + 27 * 4);
75 w27 &= ~MT_WTBL_W27_CC_BW_SEL;
76 w27 |= FIELD_PREP(MT_WTBL_W27_CC_BW_SEL, rate->bw);
78 w5 = mt76_rr(dev, addr + 5 * 4);
79 w5 &= ~(MT_WTBL_W5_BW_CAP | MT_WTBL_W5_CHANGE_BW_RATE |
80 MT_WTBL_W5_MPDU_OK_COUNT |
81 MT_WTBL_W5_MPDU_FAIL_COUNT |
83 w5 |= FIELD_PREP(MT_WTBL_W5_BW_CAP, rate->bw) |
84 FIELD_PREP(MT_WTBL_W5_CHANGE_BW_RATE,
85 rate->bw_idx ? rate->bw_idx - 1 : 7);
87 mt76_wr(dev, MT_WTBL_RIUCR0, w5);
89 mt76_wr(dev, MT_WTBL_RIUCR1,
90 FIELD_PREP(MT_WTBL_RIUCR1_RATE0, rate->probe_val) |
91 FIELD_PREP(MT_WTBL_RIUCR1_RATE1, rate->val[0]) |
92 FIELD_PREP(MT_WTBL_RIUCR1_RATE2_LO, rate->val[1]));
94 mt76_wr(dev, MT_WTBL_RIUCR2,
95 FIELD_PREP(MT_WTBL_RIUCR2_RATE2_HI, rate->val[1] >> 8) |
96 FIELD_PREP(MT_WTBL_RIUCR2_RATE3, rate->val[1]) |
97 FIELD_PREP(MT_WTBL_RIUCR2_RATE4, rate->val[2]) |
98 FIELD_PREP(MT_WTBL_RIUCR2_RATE5_LO, rate->val[2]));
100 mt76_wr(dev, MT_WTBL_RIUCR3,
101 FIELD_PREP(MT_WTBL_RIUCR3_RATE5_HI, rate->val[2] >> 4) |
102 FIELD_PREP(MT_WTBL_RIUCR3_RATE6, rate->val[3]) |
103 FIELD_PREP(MT_WTBL_RIUCR3_RATE7, rate->val[3]));
105 mt76_wr(dev, MT_WTBL_UPDATE,
106 FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, sta->wcid.idx) |
107 MT_WTBL_UPDATE_RATE_UPDATE |
108 MT_WTBL_UPDATE_TX_COUNT_CLEAR);
110 mt76_wr(dev, addr + 27 * 4, w27);
112 sta->rate_probe = sta->rateset[rate->rateset].probe_rate.idx != -1;
114 idx = sta->vif->mt76.omac_idx;
115 idx = idx > HW_BSSID_MAX ? HW_BSSID_0 : idx;
116 addr = idx > 1 ? MT_LPON_TCR2(idx): MT_LPON_TCR0(idx);
118 mt76_rmw(dev, addr, MT_LPON_TCR_MODE, MT_LPON_TCR_READ); /* TSF read */
119 val = mt76_rr(dev, MT_LPON_UTTR0);
120 sta->rate_set_tsf = (val & ~BIT(0)) | rate->rateset;
122 if (!(sta->wcid.tx_info & MT_WCID_TX_INFO_SET))
123 mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000);
125 sta->rate_count = 2 * MT7615_RATE_RETRY * sta->n_rates;
126 sta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
131 static void mt7663_usb_sdio_rate_work(struct work_struct *work)
133 struct mt7615_wtbl_rate_desc *wrd, *wrd_next;
134 struct list_head wrd_list;
135 struct mt7615_dev *dev;
137 dev = (struct mt7615_dev *)container_of(work, struct mt7615_dev,
140 INIT_LIST_HEAD(&wrd_list);
141 spin_lock_bh(&dev->mt76.lock);
142 list_splice_init(&dev->wrd_head, &wrd_list);
143 spin_unlock_bh(&dev->mt76.lock);
145 list_for_each_entry_safe(wrd, wrd_next, &wrd_list, node) {
146 list_del(&wrd->node);
148 mt7615_mutex_acquire(dev);
149 mt7663_usb_sdio_set_rates(dev, wrd);
150 mt7615_mutex_release(dev);
156 bool mt7663_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update)
158 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
160 mt7615_mutex_acquire(dev);
161 mt7615_mac_sta_poll(dev);
162 mt7615_mutex_release(dev);
166 EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_status_data);
168 void mt7663_usb_sdio_tx_complete_skb(struct mt76_dev *mdev,
169 struct mt76_queue_entry *e)
171 unsigned int headroom = MT_USB_TXD_SIZE;
173 if (mt76_is_usb(mdev))
174 headroom += MT_USB_HDR_SIZE;
175 skb_pull(e->skb, headroom);
177 mt76_tx_complete_skb(mdev, e->wcid, e->skb);
179 EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_complete_skb);
181 int mt7663_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
182 enum mt76_txq_id qid, struct mt76_wcid *wcid,
183 struct ieee80211_sta *sta,
184 struct mt76_tx_info *tx_info)
186 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
187 struct sk_buff *skb = tx_info->skb;
188 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
189 struct ieee80211_key_conf *key = info->control.hw_key;
190 struct mt7615_sta *msta;
193 msta = wcid ? container_of(wcid, struct mt7615_sta, wcid) : NULL;
195 wcid = &dev->mt76.global_wcid;
197 if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) &&
198 msta && !msta->rate_probe) {
199 /* request to configure sampling rate */
200 spin_lock_bh(&dev->mt76.lock);
201 mt7615_mac_set_rates(&dev->phy, msta, &info->control.rates[0],
203 spin_unlock_bh(&dev->mt76.lock);
206 pktid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb);
207 mt7663_usb_sdio_write_txwi(dev, wcid, qid, sta, key, pktid, skb);
208 if (mt76_is_usb(mdev)) {
211 put_unaligned_le32(len, skb_push(skb, sizeof(len)));
212 pad = round_up(skb->len, 4) + 4 - skb->len;
214 pad = round_up(skb->len, 4) - skb->len;
217 err = mt76_skb_adjust_pad(skb, pad);
219 /* Release pktid in case of error. */
220 idr_remove(&wcid->pktid, pktid);
224 EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_prepare_skb);
226 static int mt7663u_dma_sched_init(struct mt7615_dev *dev)
230 mt76_rmw(dev, MT_DMA_SHDL(MT_DMASHDL_PKT_MAX_SIZE),
231 MT_DMASHDL_PKT_MAX_SIZE_PLE | MT_DMASHDL_PKT_MAX_SIZE_PSE,
232 FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PLE, 1) |
233 FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PSE, 8));
235 /* disable refill group 5 - group 15 and raise group 2
236 * and 3 as high priority.
238 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_REFILL), 0xffe00006);
239 mt76_clear(dev, MT_DMA_SHDL(MT_DMASHDL_PAGE), BIT(16));
241 for (i = 0; i < 5; i++)
242 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_GROUP_QUOTA(i)),
243 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MIN, 0x3) |
244 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MAX, 0x1ff));
246 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(0)), 0x42104210);
247 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(1)), 0x42104210);
249 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(2)), 0x4444);
251 /* group pririority from high to low:
252 * 15 (cmd groups) > 4 > 3 > 2 > 1 > 0.
254 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET0), 0x6501234f);
255 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET1), 0xedcba987);
256 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_OPTIONAL), 0x7004801c);
258 mt76_wr(dev, MT_UDMA_WLCFG_1,
259 FIELD_PREP(MT_WL_TX_TMOUT_LMT, 80000) |
260 FIELD_PREP(MT_WL_RX_AGG_PKT_LMT, 1));
262 /* setup UDMA Rx Flush */
263 mt76_clear(dev, MT_UDMA_WLCFG_0, MT_WL_RX_FLUSH);
265 mt76_set(dev, MT_HIF_RST, MT_HIF_LOGIC_RST_N);
267 mt76_set(dev, MT_UDMA_WLCFG_0,
268 MT_WL_RX_AGG_EN | MT_WL_RX_EN | MT_WL_TX_EN |
269 MT_WL_RX_MPSZ_PAD0 | MT_TICK_1US_EN |
270 MT_WL_TX_TMOUT_FUNC_EN);
271 mt76_rmw(dev, MT_UDMA_WLCFG_0, MT_WL_RX_AGG_LMT | MT_WL_RX_AGG_TO,
272 FIELD_PREP(MT_WL_RX_AGG_LMT, 32) |
273 FIELD_PREP(MT_WL_RX_AGG_TO, 100));
278 static int mt7663_usb_sdio_init_hardware(struct mt7615_dev *dev)
282 ret = mt7615_eeprom_init(dev, MT_EFUSE_BASE);
286 if (mt76_is_usb(&dev->mt76)) {
287 ret = mt7663u_dma_sched_init(dev);
292 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
294 /* Beacon and mgmt frames should occupy wcid 0 */
295 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1);
299 dev->mt76.global_wcid.idx = idx;
300 dev->mt76.global_wcid.hw_key_idx = -1;
301 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);
306 int mt7663_usb_sdio_register_device(struct mt7615_dev *dev)
308 struct ieee80211_hw *hw = mt76_hw(dev);
311 INIT_WORK(&dev->rate_work, mt7663_usb_sdio_rate_work);
312 INIT_LIST_HEAD(&dev->wrd_head);
313 mt7615_init_device(dev);
315 err = mt7663_usb_sdio_init_hardware(dev);
319 hw->extra_tx_headroom += MT_USB_TXD_SIZE;
320 if (mt76_is_usb(&dev->mt76)) {
321 hw->extra_tx_headroom += MT_USB_HDR_SIZE;
322 /* check hw sg support in order to enable AMSDU */
323 if (dev->mt76.usb.sg_en)
324 hw->max_tx_fragments = MT_HW_TXP_MAX_BUF_NUM;
326 hw->max_tx_fragments = 1;
329 err = mt76_register_device(&dev->mt76, true, mt76_rates,
330 ARRAY_SIZE(mt76_rates));
334 if (!dev->mt76.usb.sg_en) {
335 struct ieee80211_sta_vht_cap *vht_cap;
337 /* decrease max A-MSDU size if SG is not supported */
338 vht_cap = &dev->mphy.sband_5g.sband.vht_cap;
339 vht_cap->cap &= ~IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
342 ieee80211_queue_work(hw, &dev->mcu_work);
343 mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband);
344 mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband);
346 return mt7615_init_debugfs(dev);
348 EXPORT_SYMBOL_GPL(mt7663_usb_sdio_register_device);
350 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
351 MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
352 MODULE_LICENSE("Dual BSD/GPL");