1 // SPDX-License-Identifier: ISC
2 /*
3  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
4  */
5 
6 #include <linux/kernel.h>
7 #include <linux/module.h>
8 
9 #include "../mt76x02_usb.h"
10 #include "mt76x2u.h"
11 
12 static const struct usb_device_id mt76x2u_device_table[] = {
13 	{ USB_DEVICE(0x0b05, 0x1833) },	/* Asus USB-AC54 */
14 	{ USB_DEVICE(0x0b05, 0x17eb) },	/* Asus USB-AC55 */
15 	{ USB_DEVICE(0x0b05, 0x180b) },	/* Asus USB-N53 B1 */
16 	{ USB_DEVICE(0x0e8d, 0x7612) },	/* Aukey USBAC1200 - Alfa AWUS036ACM */
17 	{ USB_DEVICE(0x057c, 0x8503) },	/* Avm FRITZ!WLAN AC860 */
18 	{ USB_DEVICE(0x7392, 0xb711) },	/* Edimax EW 7722 UAC */
19 	{ USB_DEVICE(0x0846, 0x9053) },	/* Netgear A6210 */
20 	{ USB_DEVICE(0x045e, 0x02e6) },	/* XBox One Wireless Adapter */
21 	{ },
22 };
23 
24 static int mt76x2u_probe(struct usb_interface *intf,
25 			 const struct usb_device_id *id)
26 {
27 	static const struct mt76_driver_ops drv_ops = {
28 		.drv_flags = MT_DRV_SW_RX_AIRTIME,
29 		.survey_flags = SURVEY_INFO_TIME_TX,
30 		.update_survey = mt76x02_update_channel,
31 		.tx_prepare_skb = mt76x02u_tx_prepare_skb,
32 		.tx_complete_skb = mt76x02u_tx_complete_skb,
33 		.tx_status_data = mt76x02_tx_status_data,
34 		.rx_skb = mt76x02_queue_rx_skb,
35 		.sta_ps = mt76x02_sta_ps,
36 		.sta_add = mt76x02_sta_add,
37 		.sta_remove = mt76x02_sta_remove,
38 	};
39 	struct usb_device *udev = interface_to_usbdev(intf);
40 	struct mt76x02_dev *dev;
41 	struct mt76_dev *mdev;
42 	int err;
43 
44 	mdev = mt76_alloc_device(&intf->dev, sizeof(*dev), &mt76x2u_ops,
45 				 &drv_ops);
46 	if (!mdev)
47 		return -ENOMEM;
48 
49 	dev = container_of(mdev, struct mt76x02_dev, mt76);
50 
51 	udev = usb_get_dev(udev);
52 	usb_reset_device(udev);
53 
54 	usb_set_intfdata(intf, dev);
55 
56 	mt76x02u_init_mcu(mdev);
57 	err = mt76u_init(mdev, intf, false);
58 	if (err < 0)
59 		goto err;
60 
61 	mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
62 	dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
63 	if (!is_mt76x2(dev)) {
64 		err = -ENODEV;
65 		goto err;
66 	}
67 
68 	err = mt76x2u_register_device(dev);
69 	if (err < 0)
70 		goto err;
71 
72 	return 0;
73 
74 err:
75 	ieee80211_free_hw(mt76_hw(dev));
76 	mt76u_deinit(&dev->mt76);
77 	usb_set_intfdata(intf, NULL);
78 	usb_put_dev(udev);
79 
80 	return err;
81 }
82 
83 static void mt76x2u_disconnect(struct usb_interface *intf)
84 {
85 	struct usb_device *udev = interface_to_usbdev(intf);
86 	struct mt76x02_dev *dev = usb_get_intfdata(intf);
87 	struct ieee80211_hw *hw = mt76_hw(dev);
88 
89 	set_bit(MT76_REMOVED, &dev->mphy.state);
90 	ieee80211_unregister_hw(hw);
91 	mt76x2u_cleanup(dev);
92 	mt76u_deinit(&dev->mt76);
93 
94 	ieee80211_free_hw(hw);
95 	usb_set_intfdata(intf, NULL);
96 	usb_put_dev(udev);
97 }
98 
99 static int __maybe_unused mt76x2u_suspend(struct usb_interface *intf,
100 					  pm_message_t state)
101 {
102 	struct mt76x02_dev *dev = usb_get_intfdata(intf);
103 
104 	mt76u_stop_rx(&dev->mt76);
105 
106 	return 0;
107 }
108 
109 static int __maybe_unused mt76x2u_resume(struct usb_interface *intf)
110 {
111 	struct mt76x02_dev *dev = usb_get_intfdata(intf);
112 	int err;
113 
114 	err = mt76u_resume_rx(&dev->mt76);
115 	if (err < 0)
116 		goto err;
117 
118 	err = mt76x2u_init_hardware(dev);
119 	if (err < 0)
120 		goto err;
121 
122 	return 0;
123 
124 err:
125 	mt76x2u_cleanup(dev);
126 	return err;
127 }
128 
129 MODULE_DEVICE_TABLE(usb, mt76x2u_device_table);
130 MODULE_FIRMWARE(MT7662_FIRMWARE);
131 MODULE_FIRMWARE(MT7662_ROM_PATCH);
132 
133 static struct usb_driver mt76x2u_driver = {
134 	.name		= KBUILD_MODNAME,
135 	.id_table	= mt76x2u_device_table,
136 	.probe		= mt76x2u_probe,
137 	.disconnect	= mt76x2u_disconnect,
138 #ifdef CONFIG_PM
139 	.suspend	= mt76x2u_suspend,
140 	.resume		= mt76x2u_resume,
141 	.reset_resume	= mt76x2u_resume,
142 #endif /* CONFIG_PM */
143 	.soft_unbind	= 1,
144 	.disable_hub_initiated_lpm = 1,
145 };
146 module_usb_driver(mt76x2u_driver);
147 
148 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
149 MODULE_LICENSE("Dual BSD/GPL");
150