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8#include <linux/kernel.h>
9#include <linux/module.h>
10#include <linux/usb.h>
11
12#include "mt7615.h"
13#include "mac.h"
14#include "mcu.h"
15#include "regs.h"
16
17const 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,
40};
41EXPORT_SYMBOL_GPL(mt7663_usb_sdio_reg_map);
42
43static void
44mt7663_usb_sdio_write_txwi(struct mt7615_dev *dev, struct mt76_wcid *wcid,
45 enum mt76_txq_id qid, struct ieee80211_sta *sta,
46 struct sk_buff *skb)
47{
48 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
49 struct ieee80211_key_conf *key = info->control.hw_key;
50 __le32 *txwi;
51 int pid;
52
53 if (!wcid)
54 wcid = &dev->mt76.global_wcid;
55
56 pid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb);
57
58 txwi = (__le32 *)(skb->data - MT_USB_TXD_SIZE);
59 memset(txwi, 0, MT_USB_TXD_SIZE);
60 mt7615_mac_write_txwi(dev, txwi, skb, wcid, sta, pid, key, false);
61 skb_push(skb, MT_USB_TXD_SIZE);
62}
63
64static int mt7663_usb_sdio_set_rates(struct mt7615_dev *dev,
65 struct mt7615_wtbl_rate_desc *wrd)
66{
67 struct mt7615_rate_desc *rate = &wrd->rate;
68 struct mt7615_sta *sta = wrd->sta;
69 u32 w5, w27, addr, val;
70 u16 idx;
71
72 lockdep_assert_held(&dev->mt76.mutex);
73
74 if (!sta)
75 return -EINVAL;
76
77 if (!mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000))
78 return -ETIMEDOUT;
79
80 addr = mt7615_mac_wtbl_addr(dev, sta->wcid.idx);
81
82 w27 = mt76_rr(dev, addr + 27 * 4);
83 w27 &= ~MT_WTBL_W27_CC_BW_SEL;
84 w27 |= FIELD_PREP(MT_WTBL_W27_CC_BW_SEL, rate->bw);
85
86 w5 = mt76_rr(dev, addr + 5 * 4);
87 w5 &= ~(MT_WTBL_W5_BW_CAP | MT_WTBL_W5_CHANGE_BW_RATE |
88 MT_WTBL_W5_MPDU_OK_COUNT |
89 MT_WTBL_W5_MPDU_FAIL_COUNT |
90 MT_WTBL_W5_RATE_IDX);
91 w5 |= FIELD_PREP(MT_WTBL_W5_BW_CAP, rate->bw) |
92 FIELD_PREP(MT_WTBL_W5_CHANGE_BW_RATE,
93 rate->bw_idx ? rate->bw_idx - 1 : 7);
94
95 mt76_wr(dev, MT_WTBL_RIUCR0, w5);
96
97 mt76_wr(dev, MT_WTBL_RIUCR1,
98 FIELD_PREP(MT_WTBL_RIUCR1_RATE0, rate->probe_val) |
99 FIELD_PREP(MT_WTBL_RIUCR1_RATE1, rate->val[0]) |
100 FIELD_PREP(MT_WTBL_RIUCR1_RATE2_LO, rate->val[1]));
101
102 mt76_wr(dev, MT_WTBL_RIUCR2,
103 FIELD_PREP(MT_WTBL_RIUCR2_RATE2_HI, rate->val[1] >> 8) |
104 FIELD_PREP(MT_WTBL_RIUCR2_RATE3, rate->val[1]) |
105 FIELD_PREP(MT_WTBL_RIUCR2_RATE4, rate->val[2]) |
106 FIELD_PREP(MT_WTBL_RIUCR2_RATE5_LO, rate->val[2]));
107
108 mt76_wr(dev, MT_WTBL_RIUCR3,
109 FIELD_PREP(MT_WTBL_RIUCR3_RATE5_HI, rate->val[2] >> 4) |
110 FIELD_PREP(MT_WTBL_RIUCR3_RATE6, rate->val[3]) |
111 FIELD_PREP(MT_WTBL_RIUCR3_RATE7, rate->val[3]));
112
113 mt76_wr(dev, MT_WTBL_UPDATE,
114 FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, sta->wcid.idx) |
115 MT_WTBL_UPDATE_RATE_UPDATE |
116 MT_WTBL_UPDATE_TX_COUNT_CLEAR);
117
118 mt76_wr(dev, addr + 27 * 4, w27);
119
120 sta->rate_probe = sta->rateset[rate->rateset].probe_rate.idx != -1;
121
122 idx = sta->vif->mt76.omac_idx;
123 idx = idx > HW_BSSID_MAX ? HW_BSSID_0 : idx;
124 addr = idx > 1 ? MT_LPON_TCR2(idx): MT_LPON_TCR0(idx);
125
126 mt76_rmw(dev, addr, MT_LPON_TCR_MODE, MT_LPON_TCR_READ);
127 val = mt76_rr(dev, MT_LPON_UTTR0);
128 sta->rate_set_tsf = (val & ~BIT(0)) | rate->rateset;
129
130 if (!(sta->wcid.tx_info & MT_WCID_TX_INFO_SET))
131 mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000);
132
133 sta->rate_count = 2 * MT7615_RATE_RETRY * sta->n_rates;
134 sta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
135
136 return 0;
137}
138
139static void mt7663_usb_sdio_rate_work(struct work_struct *work)
140{
141 struct mt7615_wtbl_rate_desc *wrd, *wrd_next;
142 struct list_head wrd_list;
143 struct mt7615_dev *dev;
144
145 dev = (struct mt7615_dev *)container_of(work, struct mt7615_dev,
146 rate_work);
147
148 INIT_LIST_HEAD(&wrd_list);
149 spin_lock_bh(&dev->mt76.lock);
150 list_splice_init(&dev->wrd_head, &wrd_list);
151 spin_unlock_bh(&dev->mt76.lock);
152
153 list_for_each_entry_safe(wrd, wrd_next, &wrd_list, node) {
154 list_del(&wrd->node);
155
156 mt7615_mutex_acquire(dev);
157 mt7663_usb_sdio_set_rates(dev, wrd);
158 mt7615_mutex_release(dev);
159
160 kfree(wrd);
161 }
162}
163
164bool mt7663_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update)
165{
166 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
167
168 mt7615_mutex_acquire(dev);
169 mt7615_mac_sta_poll(dev);
170 mt7615_mutex_release(dev);
171
172 return 0;
173}
174EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_status_data);
175
176void mt7663_usb_sdio_tx_complete_skb(struct mt76_dev *mdev,
177 struct mt76_queue_entry *e)
178{
179 unsigned int headroom = MT_USB_TXD_SIZE;
180
181 if (mt76_is_usb(mdev))
182 headroom += MT_USB_HDR_SIZE;
183 skb_pull(e->skb, headroom);
184
185 mt76_tx_complete_skb(mdev, e->wcid, e->skb);
186}
187EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_complete_skb);
188
189int mt7663_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
190 enum mt76_txq_id qid, struct mt76_wcid *wcid,
191 struct ieee80211_sta *sta,
192 struct mt76_tx_info *tx_info)
193{
194 struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
195 struct sk_buff *skb = tx_info->skb;
196 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
197 struct mt7615_sta *msta;
198 int pad;
199
200 msta = wcid ? container_of(wcid, struct mt7615_sta, wcid) : NULL;
201 if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) &&
202 msta && !msta->rate_probe) {
203
204 spin_lock_bh(&dev->mt76.lock);
205 mt7615_mac_set_rates(&dev->phy, msta, &info->control.rates[0],
206 msta->rates);
207 spin_unlock_bh(&dev->mt76.lock);
208 }
209
210 mt7663_usb_sdio_write_txwi(dev, wcid, qid, sta, skb);
211 if (mt76_is_usb(mdev)) {
212 u32 len = skb->len;
213
214 put_unaligned_le32(len, skb_push(skb, sizeof(len)));
215 pad = round_up(skb->len, 4) + 4 - skb->len;
216 } else {
217 pad = round_up(skb->len, 4) - skb->len;
218 }
219
220 return mt76_skb_adjust_pad(skb, pad);
221}
222EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_prepare_skb);
223
224static int mt7663u_dma_sched_init(struct mt7615_dev *dev)
225{
226 int i;
227
228 mt76_rmw(dev, MT_DMA_SHDL(MT_DMASHDL_PKT_MAX_SIZE),
229 MT_DMASHDL_PKT_MAX_SIZE_PLE | MT_DMASHDL_PKT_MAX_SIZE_PSE,
230 FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PLE, 1) |
231 FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PSE, 8));
232
233
234
235
236 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_REFILL), 0xffe00006);
237 mt76_clear(dev, MT_DMA_SHDL(MT_DMASHDL_PAGE), BIT(16));
238
239 for (i = 0; i < 5; i++)
240 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_GROUP_QUOTA(i)),
241 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MIN, 0x3) |
242 FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MAX, 0x1ff));
243
244 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(0)), 0x42104210);
245 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(1)), 0x42104210);
246
247 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(2)), 0x4444);
248
249
250
251
252 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET0), 0x6501234f);
253 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET1), 0xedcba987);
254 mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_OPTIONAL), 0x7004801c);
255
256 mt76_wr(dev, MT_UDMA_WLCFG_1,
257 FIELD_PREP(MT_WL_TX_TMOUT_LMT, 80000) |
258 FIELD_PREP(MT_WL_RX_AGG_PKT_LMT, 1));
259
260
261 mt76_clear(dev, MT_UDMA_WLCFG_0, MT_WL_RX_FLUSH);
262
263 mt76_set(dev, MT_HIF_RST, MT_HIF_LOGIC_RST_N);
264
265 mt76_set(dev, MT_UDMA_WLCFG_0,
266 MT_WL_RX_AGG_EN | MT_WL_RX_EN | MT_WL_TX_EN |
267 MT_WL_RX_MPSZ_PAD0 | MT_TICK_1US_EN |
268 MT_WL_TX_TMOUT_FUNC_EN);
269 mt76_rmw(dev, MT_UDMA_WLCFG_0, MT_WL_RX_AGG_LMT | MT_WL_RX_AGG_TO,
270 FIELD_PREP(MT_WL_RX_AGG_LMT, 32) |
271 FIELD_PREP(MT_WL_RX_AGG_TO, 100));
272
273 return 0;
274}
275
276static int mt7663_usb_sdio_init_hardware(struct mt7615_dev *dev)
277{
278 int ret, idx;
279
280 ret = mt7615_eeprom_init(dev, MT_EFUSE_BASE);
281 if (ret < 0)
282 return ret;
283
284 if (mt76_is_usb(&dev->mt76)) {
285 ret = mt7663u_dma_sched_init(dev);
286 if (ret)
287 return ret;
288 }
289
290 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
291
292
293 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1);
294 if (idx)
295 return -ENOSPC;
296
297 dev->mt76.global_wcid.idx = idx;
298 dev->mt76.global_wcid.hw_key_idx = -1;
299 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);
300
301 return 0;
302}
303
304int mt7663_usb_sdio_register_device(struct mt7615_dev *dev)
305{
306 struct ieee80211_hw *hw = mt76_hw(dev);
307 int err;
308
309 INIT_WORK(&dev->rate_work, mt7663_usb_sdio_rate_work);
310 INIT_LIST_HEAD(&dev->wrd_head);
311 mt7615_init_device(dev);
312
313 err = mt7663_usb_sdio_init_hardware(dev);
314 if (err)
315 return err;
316
317 hw->extra_tx_headroom += MT_USB_TXD_SIZE;
318 if (mt76_is_usb(&dev->mt76)) {
319 hw->extra_tx_headroom += MT_USB_HDR_SIZE;
320
321 if (dev->mt76.usb.sg_en)
322 hw->max_tx_fragments = MT_HW_TXP_MAX_BUF_NUM;
323 else
324 hw->max_tx_fragments = 1;
325 }
326
327 err = mt76_register_device(&dev->mt76, true, mt76_rates,
328 ARRAY_SIZE(mt76_rates));
329 if (err < 0)
330 return err;
331
332 if (!dev->mt76.usb.sg_en) {
333 struct ieee80211_sta_vht_cap *vht_cap;
334
335
336 vht_cap = &dev->mphy.sband_5g.sband.vht_cap;
337 vht_cap->cap &= ~IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
338 }
339
340 ieee80211_queue_work(hw, &dev->mcu_work);
341 mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband);
342 mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband);
343
344 return mt7615_init_debugfs(dev);
345}
346EXPORT_SYMBOL_GPL(mt7663_usb_sdio_register_device);
347
348MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
349MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
350MODULE_LICENSE("Dual BSD/GPL");
351
