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
|
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2020 MediaTek Inc.
*
* Author: Felix Fietkau <nbd@nbd.name>
* Lorenzo Bianconi <lorenzo@kernel.org>
* Sean Wang <sean.wang@mediatek.com>
*/
#include <linux/kernel.h>
#include <linux/mmc/sdio_func.h>
#include <linux/module.h>
#include <linux/iopoll.h>
#include "mt7615.h"
#include "mac.h"
#include "mcu.h"
#include "regs.h"
#include "sdio.h"
static int mt7663s_mcu_init_sched(struct mt7615_dev *dev)
{
struct mt76_sdio *sdio = &dev->mt76.sdio;
u32 pse0, ple, pse1, txdwcnt;
pse0 = mt76_get_field(dev, MT_PSE_PG_HIF0_GROUP, MT_HIF0_MIN_QUOTA);
pse1 = mt76_get_field(dev, MT_PSE_PG_HIF1_GROUP, MT_HIF1_MIN_QUOTA);
ple = mt76_get_field(dev, MT_PLE_PG_HIF0_GROUP, MT_HIF0_MIN_QUOTA);
txdwcnt = mt76_get_field(dev, MT_PP_TXDWCNT,
MT_PP_TXDWCNT_TX1_ADD_DW_CNT);
mutex_lock(&sdio->sched.lock);
sdio->sched.pse_data_quota = pse0;
sdio->sched.ple_data_quota = ple;
sdio->sched.pse_mcu_quota = pse1;
sdio->sched.deficit = txdwcnt << 2;
mutex_unlock(&sdio->sched.lock);
return 0;
}
static int
mt7663s_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
int cmd, bool wait_resp)
{
struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
int ret, seq;
mutex_lock(&mdev->mcu.mutex);
mt7615_mcu_fill_msg(dev, skb, cmd, &seq);
ret = mt76_tx_queue_skb_raw(dev, MT_TXQ_MCU, skb, 0);
if (ret)
goto out;
mt76_queue_kick(dev, mdev->q_tx[MT_TXQ_MCU].q);
if (wait_resp)
ret = mt7615_mcu_wait_response(dev, cmd, seq);
out:
mutex_unlock(&mdev->mcu.mutex);
return ret;
}
int mt7663s_driver_own(struct mt7615_dev *dev)
{
struct sdio_func *func = dev->mt76.sdio.func;
struct mt76_phy *mphy = &dev->mt76.phy;
u32 status;
int ret;
if (!test_and_clear_bit(MT76_STATE_PM, &mphy->state))
goto out;
sdio_claim_host(func);
sdio_writel(func, WHLPCR_FW_OWN_REQ_CLR, MCR_WHLPCR, 0);
ret = readx_poll_timeout(mt7663s_read_pcr, dev, status,
status & WHLPCR_IS_DRIVER_OWN, 2000, 1000000);
if (ret < 0) {
dev_err(dev->mt76.dev, "Cannot get ownership from device");
set_bit(MT76_STATE_PM, &mphy->state);
sdio_release_host(func);
return ret;
}
sdio_release_host(func);
out:
dev->pm.last_activity = jiffies;
return 0;
}
int mt7663s_firmware_own(struct mt7615_dev *dev)
{
struct sdio_func *func = dev->mt76.sdio.func;
struct mt76_phy *mphy = &dev->mt76.phy;
u32 status;
int ret;
if (test_and_set_bit(MT76_STATE_PM, &mphy->state))
return 0;
sdio_claim_host(func);
sdio_writel(func, WHLPCR_FW_OWN_REQ_SET, MCR_WHLPCR, 0);
ret = readx_poll_timeout(mt7663s_read_pcr, dev, status,
!(status & WHLPCR_IS_DRIVER_OWN), 2000, 1000000);
if (ret < 0) {
dev_err(dev->mt76.dev, "Cannot set ownership to device");
clear_bit(MT76_STATE_PM, &mphy->state);
}
sdio_release_host(func);
return ret;
}
int mt7663s_mcu_init(struct mt7615_dev *dev)
{
static const struct mt76_mcu_ops mt7663s_mcu_ops = {
.headroom = sizeof(struct mt7615_mcu_txd),
.tailroom = MT_USB_TAIL_SIZE,
.mcu_skb_send_msg = mt7663s_mcu_send_message,
.mcu_send_msg = mt7615_mcu_msg_send,
.mcu_restart = mt7615_mcu_restart,
.mcu_rr = mt7615_mcu_reg_rr,
.mcu_wr = mt7615_mcu_reg_wr,
};
int ret;
ret = mt7663s_driver_own(dev);
if (ret)
return ret;
dev->mt76.mcu_ops = &mt7663s_mcu_ops,
ret = mt76_get_field(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY);
if (ret) {
mt7615_mcu_restart(&dev->mt76);
if (!mt76_poll_msec(dev, MT_CONN_ON_MISC,
MT_TOP_MISC2_FW_N9_RDY, 0, 500))
return -EIO;
}
ret = __mt7663_load_firmware(dev);
if (ret)
return ret;
ret = mt7663s_mcu_init_sched(dev);
if (ret)
return ret;
set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
return 0;
}
|
