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
|
// SPDX-License-Identifier: ISC
/* Copyright (C) 2021 MediaTek Inc. */
#include <linux/iopoll.h>
#include <linux/mmc/sdio_func.h>
#include "mt7921.h"
#include "mac.h"
#include "../sdio.h"
static void mt7921s_enable_irq(struct mt76_dev *dev)
{
struct mt76_sdio *sdio = &dev->sdio;
sdio_claim_host(sdio->func);
sdio_writel(sdio->func, WHLPCR_INT_EN_SET, MCR_WHLPCR, NULL);
sdio_release_host(sdio->func);
}
static void mt7921s_disable_irq(struct mt76_dev *dev)
{
struct mt76_sdio *sdio = &dev->sdio;
sdio_claim_host(sdio->func);
sdio_writel(sdio->func, WHLPCR_INT_EN_CLR, MCR_WHLPCR, NULL);
sdio_release_host(sdio->func);
}
static u32 mt7921s_read_whcr(struct mt76_dev *dev)
{
return sdio_readl(dev->sdio.func, MCR_WHCR, NULL);
}
int mt7921s_wfsys_reset(struct mt7921_dev *dev)
{
struct mt76_sdio *sdio = &dev->mt76.sdio;
u32 val, status;
mt7921s_mcu_drv_pmctrl(dev);
sdio_claim_host(sdio->func);
val = sdio_readl(sdio->func, MCR_WHCR, NULL);
val &= ~WF_WHOLE_PATH_RSTB;
sdio_writel(sdio->func, val, MCR_WHCR, NULL);
msleep(50);
val = sdio_readl(sdio->func, MCR_WHCR, NULL);
val &= ~WF_SDIO_WF_PATH_RSTB;
sdio_writel(sdio->func, val, MCR_WHCR, NULL);
usleep_range(1000, 2000);
val = sdio_readl(sdio->func, MCR_WHCR, NULL);
val |= WF_WHOLE_PATH_RSTB;
sdio_writel(sdio->func, val, MCR_WHCR, NULL);
readx_poll_timeout(mt7921s_read_whcr, &dev->mt76, status,
status & WF_RST_DONE, 50000, 2000000);
sdio_release_host(sdio->func);
/* activate mt7921s again */
mt7921s_mcu_fw_pmctrl(dev);
mt7921s_mcu_drv_pmctrl(dev);
return 0;
}
int mt7921s_init_reset(struct mt7921_dev *dev)
{
set_bit(MT76_MCU_RESET, &dev->mphy.state);
wake_up(&dev->mt76.mcu.wait);
skb_queue_purge(&dev->mt76.mcu.res_q);
wait_event_timeout(dev->mt76.sdio.wait,
mt76s_txqs_empty(&dev->mt76), 5 * HZ);
mt76_worker_disable(&dev->mt76.sdio.txrx_worker);
mt7921s_disable_irq(&dev->mt76);
mt7921s_wfsys_reset(dev);
mt76_worker_enable(&dev->mt76.sdio.txrx_worker);
clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
clear_bit(MT76_MCU_RESET, &dev->mphy.state);
mt7921s_enable_irq(&dev->mt76);
return 0;
}
int mt7921s_mac_reset(struct mt7921_dev *dev)
{
int err;
mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
mt76_txq_schedule_all(&dev->mphy);
mt76_worker_disable(&dev->mt76.tx_worker);
set_bit(MT76_RESET, &dev->mphy.state);
set_bit(MT76_MCU_RESET, &dev->mphy.state);
wake_up(&dev->mt76.mcu.wait);
skb_queue_purge(&dev->mt76.mcu.res_q);
wait_event_timeout(dev->mt76.sdio.wait,
mt76s_txqs_empty(&dev->mt76), 5 * HZ);
mt76_worker_disable(&dev->mt76.sdio.txrx_worker);
mt76_worker_disable(&dev->mt76.sdio.status_worker);
mt76_worker_disable(&dev->mt76.sdio.net_worker);
cancel_work_sync(&dev->mt76.sdio.stat_work);
mt7921s_disable_irq(&dev->mt76);
mt7921s_wfsys_reset(dev);
mt76_worker_enable(&dev->mt76.sdio.txrx_worker);
mt76_worker_enable(&dev->mt76.sdio.status_worker);
mt76_worker_enable(&dev->mt76.sdio.net_worker);
dev->fw_assert = false;
clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
clear_bit(MT76_MCU_RESET, &dev->mphy.state);
mt7921s_enable_irq(&dev->mt76);
err = mt7921_run_firmware(dev);
if (err)
goto out;
err = mt7921_mcu_set_eeprom(dev);
if (err)
goto out;
err = mt7921_mac_init(dev);
if (err)
goto out;
err = __mt7921_start(&dev->phy);
out:
clear_bit(MT76_RESET, &dev->mphy.state);
mt76_worker_enable(&dev->mt76.tx_worker);
return err;
}
static void
mt7921s_write_txwi(struct mt7921_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_SDIO_TXD_SIZE);
memset(txwi, 0, MT_SDIO_TXD_SIZE);
mt7921_mac_write_txwi(dev, txwi, skb, wcid, key, pid, false);
skb_push(skb, MT_SDIO_TXD_SIZE);
}
int mt7921s_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 mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
struct ieee80211_key_conf *key = info->control.hw_key;
struct sk_buff *skb = tx_info->skb;
int err, pad, pktid;
if (unlikely(tx_info->skb->len <= ETH_HLEN))
return -EINVAL;
if (!wcid)
wcid = &dev->mt76.global_wcid;
if (sta) {
struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
if (time_after(jiffies, msta->last_txs + HZ / 4)) {
info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
msta->last_txs = jiffies;
}
}
pktid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb);
mt7921s_write_txwi(dev, wcid, qid, sta, key, pktid, skb);
mt7921_skb_add_sdio_hdr(skb, MT7921_SDIO_DATA);
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;
}
void mt7921s_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e)
{
__le32 *txwi = (__le32 *)(e->skb->data + MT_SDIO_HDR_SIZE);
unsigned int headroom = MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
struct ieee80211_sta *sta;
struct mt76_wcid *wcid;
u16 idx;
idx = FIELD_GET(MT_TXD1_WLAN_IDX, le32_to_cpu(txwi[1]));
wcid = rcu_dereference(mdev->wcid[idx]);
sta = wcid_to_sta(wcid);
if (sta && likely(e->skb->protocol != cpu_to_be16(ETH_P_PAE)))
mt7921_tx_check_aggr(sta, txwi);
skb_pull(e->skb, headroom);
mt76_tx_complete_skb(mdev, e->wcid, e->skb);
}
bool mt7921s_tx_status_data(struct mt76_dev *mdev, u8 *update)
{
struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
mt7921_mutex_acquire(dev);
mt7921_mac_sta_poll(dev);
mt7921_mutex_release(dev);
return 0;
}
|
