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
|
// SPDX-License-Identifier: ISC
/*
* Copyright (C) 2022 MediaTek Inc.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include "mt7996.h"
#include "mac.h"
#include "../trace.h"
static LIST_HEAD(hif_list);
static DEFINE_SPINLOCK(hif_lock);
static u32 hif_idx;
static const struct pci_device_id mt7996_pci_device_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7990) },
{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7992) },
{ },
};
static const struct pci_device_id mt7996_hif_device_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7991) },
{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x799a) },
{ },
};
static struct mt7996_hif *mt7996_pci_get_hif2(u32 idx)
{
struct mt7996_hif *hif;
u32 val;
spin_lock_bh(&hif_lock);
list_for_each_entry(hif, &hif_list, list) {
val = readl(hif->regs + MT_PCIE_RECOG_ID);
val &= MT_PCIE_RECOG_ID_MASK;
if (val != idx)
continue;
get_device(hif->dev);
goto out;
}
hif = NULL;
out:
spin_unlock_bh(&hif_lock);
return hif;
}
static void mt7996_put_hif2(struct mt7996_hif *hif)
{
if (!hif)
return;
put_device(hif->dev);
}
static struct mt7996_hif *mt7996_pci_init_hif2(struct pci_dev *pdev)
{
hif_idx++;
if (!pci_get_device(PCI_VENDOR_ID_MEDIATEK, 0x7991, NULL) &&
!pci_get_device(PCI_VENDOR_ID_MEDIATEK, 0x799a, NULL))
return NULL;
writel(hif_idx | MT_PCIE_RECOG_ID_SEM,
pcim_iomap_table(pdev)[0] + MT_PCIE_RECOG_ID);
return mt7996_pci_get_hif2(hif_idx);
}
static int mt7996_pci_hif2_probe(struct pci_dev *pdev)
{
struct mt7996_hif *hif;
hif = devm_kzalloc(&pdev->dev, sizeof(*hif), GFP_KERNEL);
if (!hif)
return -ENOMEM;
hif->dev = &pdev->dev;
hif->regs = pcim_iomap_table(pdev)[0];
hif->irq = pdev->irq;
spin_lock_bh(&hif_lock);
list_add(&hif->list, &hif_list);
spin_unlock_bh(&hif_lock);
pci_set_drvdata(pdev, hif);
return 0;
}
static int mt7996_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct pci_dev *hif2_dev;
struct mt7996_hif *hif2;
struct mt7996_dev *dev;
int irq, hif2_irq, ret;
struct mt76_dev *mdev;
ret = pcim_enable_device(pdev);
if (ret)
return ret;
ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
if (ret)
return ret;
pci_set_master(pdev);
ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(36));
if (ret)
return ret;
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
mt76_pci_disable_aspm(pdev);
if (id->device == 0x7991 || id->device == 0x799a)
return mt7996_pci_hif2_probe(pdev);
dev = mt7996_mmio_probe(&pdev->dev, pcim_iomap_table(pdev)[0],
id->device);
if (IS_ERR(dev))
return PTR_ERR(dev);
mdev = &dev->mt76;
mt7996_wfsys_reset(dev);
hif2 = mt7996_pci_init_hif2(pdev);
ret = mt7996_mmio_wed_init(dev, pdev, false, &irq);
if (ret < 0)
goto free_wed_or_irq_vector;
if (!ret) {
ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
if (ret < 0)
goto free_device;
irq = pdev->irq;
}
ret = devm_request_irq(mdev->dev, irq, mt7996_irq_handler,
IRQF_SHARED, KBUILD_MODNAME, dev);
if (ret)
goto free_wed_or_irq_vector;
mt76_wr(dev, MT_INT_MASK_CSR, 0);
/* master switch of PCIe tnterrupt enable */
mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
if (hif2) {
hif2_dev = container_of(hif2->dev, struct pci_dev, dev);
dev->hif2 = hif2;
ret = mt7996_mmio_wed_init(dev, hif2_dev, true, &hif2_irq);
if (ret < 0)
goto free_hif2_wed_irq_vector;
if (!ret) {
ret = pci_alloc_irq_vectors(hif2_dev, 1, 1,
PCI_IRQ_ALL_TYPES);
if (ret < 0)
goto free_hif2;
dev->hif2->irq = hif2_dev->irq;
hif2_irq = dev->hif2->irq;
}
ret = devm_request_irq(mdev->dev, hif2_irq, mt7996_irq_handler,
IRQF_SHARED, KBUILD_MODNAME "-hif",
dev);
if (ret)
goto free_hif2_wed_irq_vector;
mt76_wr(dev, MT_INT1_MASK_CSR, 0);
/* master switch of PCIe tnterrupt enable */
mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff);
}
ret = mt7996_register_device(dev);
if (ret)
goto free_hif2_irq;
return 0;
free_hif2_irq:
if (dev->hif2)
devm_free_irq(mdev->dev, hif2_irq, dev);
free_hif2_wed_irq_vector:
if (dev->hif2) {
if (mtk_wed_device_active(&dev->mt76.mmio.wed_hif2))
mtk_wed_device_detach(&dev->mt76.mmio.wed_hif2);
else
pci_free_irq_vectors(hif2_dev);
}
free_hif2:
if (dev->hif2)
put_device(dev->hif2->dev);
devm_free_irq(mdev->dev, irq, dev);
free_wed_or_irq_vector:
if (mtk_wed_device_active(&dev->mt76.mmio.wed))
mtk_wed_device_detach(&dev->mt76.mmio.wed);
else
pci_free_irq_vectors(pdev);
free_device:
mt76_free_device(&dev->mt76);
return ret;
}
static void mt7996_hif_remove(struct pci_dev *pdev)
{
struct mt7996_hif *hif = pci_get_drvdata(pdev);
list_del(&hif->list);
}
static void mt7996_pci_remove(struct pci_dev *pdev)
{
struct mt76_dev *mdev;
struct mt7996_dev *dev;
mdev = pci_get_drvdata(pdev);
dev = container_of(mdev, struct mt7996_dev, mt76);
mt7996_put_hif2(dev->hif2);
mt7996_unregister_device(dev);
}
struct pci_driver mt7996_hif_driver = {
.name = KBUILD_MODNAME "_hif",
.id_table = mt7996_hif_device_table,
.probe = mt7996_pci_probe,
.remove = mt7996_hif_remove,
};
struct pci_driver mt7996_pci_driver = {
.name = KBUILD_MODNAME,
.id_table = mt7996_pci_device_table,
.probe = mt7996_pci_probe,
.remove = mt7996_pci_remove,
};
MODULE_DEVICE_TABLE(pci, mt7996_pci_device_table);
MODULE_DEVICE_TABLE(pci, mt7996_hif_device_table);
MODULE_FIRMWARE(MT7996_FIRMWARE_WA);
MODULE_FIRMWARE(MT7996_FIRMWARE_WM);
MODULE_FIRMWARE(MT7996_FIRMWARE_DSP);
MODULE_FIRMWARE(MT7996_ROM_PATCH);
MODULE_FIRMWARE(MT7992_FIRMWARE_WA);
MODULE_FIRMWARE(MT7992_FIRMWARE_WM);
MODULE_FIRMWARE(MT7992_FIRMWARE_DSP);
MODULE_FIRMWARE(MT7992_ROM_PATCH);
|
