1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
|
// 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 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;
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;
mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_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 <lorenzo@kernel.org>");
MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
MODULE_LICENSE("Dual BSD/GPL");
|
