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9#include <linux/kernel.h>
10#include <linux/module.h>
11#include <linux/usb.h>
12
13#include "mt7615.h"
14#include "mac.h"
15#include "mcu.h"
16#include "regs.h"
17
18static const struct usb_device_id mt7615_device_table[] = {
19 { USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7663, 0xff, 0xff, 0xff) },
20 { },
21};
22
23static void mt7663u_stop(struct ieee80211_hw *hw)
24{
25 struct mt7615_phy *phy = mt7615_hw_phy(hw);
26 struct mt7615_dev *dev = hw->priv;
27
28 clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
29 del_timer_sync(&phy->roc_timer);
30 cancel_work_sync(&phy->roc_work);
31 cancel_delayed_work_sync(&phy->scan_work);
32 cancel_delayed_work_sync(&phy->mt76->mac_work);
33 mt76u_stop_tx(&dev->mt76);
34}
35
36static void mt7663u_cleanup(struct mt7615_dev *dev)
37{
38 clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
39 mt76u_queues_deinit(&dev->mt76);
40}
41
42static void mt7663u_init_work(struct work_struct *work)
43{
44 struct mt7615_dev *dev;
45
46 dev = container_of(work, struct mt7615_dev, mcu_work);
47 if (mt7663u_mcu_init(dev))
48 return;
49
50 mt7615_init_work(dev);
51}
52
53static int mt7663u_probe(struct usb_interface *usb_intf,
54 const struct usb_device_id *id)
55{
56 static const struct mt76_driver_ops drv_ops = {
57 .txwi_size = MT_USB_TXD_SIZE,
58 .drv_flags = MT_DRV_RX_DMA_HDR | MT_DRV_HW_MGMT_TXQ,
59 .tx_prepare_skb = mt7663_usb_sdio_tx_prepare_skb,
60 .tx_complete_skb = mt7663_usb_sdio_tx_complete_skb,
61 .tx_status_data = mt7663_usb_sdio_tx_status_data,
62 .rx_skb = mt7615_queue_rx_skb,
63 .sta_ps = mt7615_sta_ps,
64 .sta_add = mt7615_mac_sta_add,
65 .sta_remove = mt7615_mac_sta_remove,
66 .update_survey = mt7615_update_channel,
67 };
68 struct usb_device *udev = interface_to_usbdev(usb_intf);
69 struct ieee80211_ops *ops;
70 struct mt7615_dev *dev;
71 struct mt76_dev *mdev;
72 int ret;
73
74 ops = devm_kmemdup(&usb_intf->dev, &mt7615_ops, sizeof(mt7615_ops),
75 GFP_KERNEL);
76 if (!ops)
77 return -ENOMEM;
78
79 ops->stop = mt7663u_stop;
80
81 mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), ops, &drv_ops);
82 if (!mdev)
83 return -ENOMEM;
84
85 dev = container_of(mdev, struct mt7615_dev, mt76);
86 udev = usb_get_dev(udev);
87 usb_reset_device(udev);
88
89 usb_set_intfdata(usb_intf, dev);
90
91 INIT_WORK(&dev->mcu_work, mt7663u_init_work);
92 dev->reg_map = mt7663_usb_sdio_reg_map;
93 dev->ops = ops;
94 ret = mt76u_init(mdev, usb_intf, true);
95 if (ret < 0)
96 goto error;
97
98 mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
99 (mt76_rr(dev, MT_HW_REV) & 0xff);
100 dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
101
102 if (mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
103 FW_STATE_PWR_ON << 1, 500)) {
104 dev_dbg(dev->mt76.dev, "Usb device already powered on\n");
105 set_bit(MT76_STATE_POWER_OFF, &dev->mphy.state);
106 goto alloc_queues;
107 }
108
109 ret = mt76u_vendor_request(&dev->mt76, MT_VEND_POWER_ON,
110 USB_DIR_OUT | USB_TYPE_VENDOR,
111 0x0, 0x1, NULL, 0);
112 if (ret)
113 goto error;
114
115 if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
116 FW_STATE_PWR_ON << 1, 500)) {
117 dev_err(dev->mt76.dev, "Timeout for power on\n");
118 ret = -EIO;
119 goto error;
120 }
121
122alloc_queues:
123 ret = mt76u_alloc_mcu_queue(&dev->mt76);
124 if (ret)
125 goto error;
126
127 ret = mt76u_alloc_queues(&dev->mt76);
128 if (ret)
129 goto error;
130
131 ret = mt7663_usb_sdio_register_device(dev);
132 if (ret)
133 goto error;
134
135 return 0;
136
137error:
138 mt76u_queues_deinit(&dev->mt76);
139 usb_set_intfdata(usb_intf, NULL);
140 usb_put_dev(interface_to_usbdev(usb_intf));
141
142 mt76_free_device(&dev->mt76);
143
144 return ret;
145}
146
147static void mt7663u_disconnect(struct usb_interface *usb_intf)
148{
149 struct mt7615_dev *dev = usb_get_intfdata(usb_intf);
150
151 if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
152 return;
153
154 ieee80211_unregister_hw(dev->mt76.hw);
155 mt7663u_cleanup(dev);
156
157 usb_set_intfdata(usb_intf, NULL);
158 usb_put_dev(interface_to_usbdev(usb_intf));
159
160 mt76_free_device(&dev->mt76);
161}
162
163#ifdef CONFIG_PM
164static int mt7663u_suspend(struct usb_interface *intf, pm_message_t state)
165{
166 struct mt7615_dev *dev = usb_get_intfdata(intf);
167
168 if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&
169 mt7615_firmware_offload(dev)) {
170 int err;
171
172 err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true);
173 if (err < 0)
174 return err;
175 }
176
177 mt76u_stop_rx(&dev->mt76);
178 mt76u_stop_tx(&dev->mt76);
179
180 return 0;
181}
182
183static int mt7663u_resume(struct usb_interface *intf)
184{
185 struct mt7615_dev *dev = usb_get_intfdata(intf);
186 int err;
187
188 err = mt76u_vendor_request(&dev->mt76, MT_VEND_FEATURE_SET,
189 USB_DIR_OUT | USB_TYPE_VENDOR,
190 0x5, 0x0, NULL, 0);
191 if (err)
192 return err;
193
194 err = mt76u_resume_rx(&dev->mt76);
195 if (err < 0)
196 return err;
197
198 if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&
199 mt7615_firmware_offload(dev))
200 err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, false);
201
202 return err;
203}
204#endif
205
206MODULE_DEVICE_TABLE(usb, mt7615_device_table);
207MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9);
208MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH);
209MODULE_FIRMWARE(MT7663_FIRMWARE_N9);
210MODULE_FIRMWARE(MT7663_ROM_PATCH);
211
212static struct usb_driver mt7663u_driver = {
213 .name = KBUILD_MODNAME,
214 .id_table = mt7615_device_table,
215 .probe = mt7663u_probe,
216 .disconnect = mt7663u_disconnect,
217#ifdef CONFIG_PM
218 .suspend = mt7663u_suspend,
219 .resume = mt7663u_resume,
220 .reset_resume = mt7663u_resume,
221#endif
222 .soft_unbind = 1,
223 .disable_hub_initiated_lpm = 1,
224};
225module_usb_driver(mt7663u_driver);
226
227MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
228MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
229MODULE_LICENSE("Dual BSD/GPL");
230
