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(0x0e8d, 0x7632) },	/* HC-M7662BU1 */
20 	{ USB_DEVICE(0x2c4e, 0x0103) },	/* Mercury UD13 */
21 	{ USB_DEVICE(0x0846, 0x9053) },	/* Netgear A6210 */
22 	{ USB_DEVICE(0x045e, 0x02e6) },	/* XBox One Wireless Adapter */
23 	{ USB_DEVICE(0x045e, 0x02fe) },	/* XBox One Wireless Adapter */
24 	{ },
25 };
26 
mt76x2u_probe(struct usb_interface * intf,const struct usb_device_id * id)27 static int mt76x2u_probe(struct usb_interface *intf,
28 			 const struct usb_device_id *id)
29 {
30 	static const struct mt76_driver_ops drv_ops = {
31 		.drv_flags = MT_DRV_SW_RX_AIRTIME,
32 		.survey_flags = SURVEY_INFO_TIME_TX,
33 		.update_survey = mt76x02_update_channel,
34 		.tx_prepare_skb = mt76x02u_tx_prepare_skb,
35 		.tx_complete_skb = mt76x02u_tx_complete_skb,
36 		.tx_status_data = mt76x02_tx_status_data,
37 		.rx_skb = mt76x02_queue_rx_skb,
38 		.sta_ps = mt76x02_sta_ps,
39 		.sta_add = mt76x02_sta_add,
40 		.sta_remove = mt76x02_sta_remove,
41 	};
42 	struct usb_device *udev = interface_to_usbdev(intf);
43 	struct mt76x02_dev *dev;
44 	struct mt76_dev *mdev;
45 	int err;
46 
47 	mdev = mt76_alloc_device(&intf->dev, sizeof(*dev), &mt76x2u_ops,
48 				 &drv_ops);
49 	if (!mdev)
50 		return -ENOMEM;
51 
52 	dev = container_of(mdev, struct mt76x02_dev, mt76);
53 
54 	udev = usb_get_dev(udev);
55 	usb_reset_device(udev);
56 
57 	usb_set_intfdata(intf, dev);
58 
59 	mt76x02u_init_mcu(mdev);
60 	err = mt76u_init(mdev, intf);
61 	if (err < 0)
62 		goto err;
63 
64 	mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
65 	dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
66 	if (!is_mt76x2(dev)) {
67 		err = -ENODEV;
68 		goto err;
69 	}
70 
71 	err = mt76x2u_register_device(dev);
72 	if (err < 0)
73 		goto err;
74 
75 	return 0;
76 
77 err:
78 	mt76u_queues_deinit(&dev->mt76);
79 	mt76_free_device(&dev->mt76);
80 	usb_set_intfdata(intf, NULL);
81 	usb_put_dev(udev);
82 
83 	return err;
84 }
85 
mt76x2u_disconnect(struct usb_interface * intf)86 static void mt76x2u_disconnect(struct usb_interface *intf)
87 {
88 	struct usb_device *udev = interface_to_usbdev(intf);
89 	struct mt76x02_dev *dev = usb_get_intfdata(intf);
90 	struct ieee80211_hw *hw = mt76_hw(dev);
91 
92 	set_bit(MT76_REMOVED, &dev->mphy.state);
93 	ieee80211_unregister_hw(hw);
94 	mt76x2u_cleanup(dev);
95 	mt76_free_device(&dev->mt76);
96 	usb_set_intfdata(intf, NULL);
97 	usb_put_dev(udev);
98 }
99 
mt76x2u_suspend(struct usb_interface * intf,pm_message_t state)100 static int __maybe_unused mt76x2u_suspend(struct usb_interface *intf,
101 					  pm_message_t state)
102 {
103 	struct mt76x02_dev *dev = usb_get_intfdata(intf);
104 
105 	mt76u_stop_rx(&dev->mt76);
106 
107 	return 0;
108 }
109 
mt76x2u_resume(struct usb_interface * intf)110 static int __maybe_unused mt76x2u_resume(struct usb_interface *intf)
111 {
112 	struct mt76x02_dev *dev = usb_get_intfdata(intf);
113 	int err;
114 
115 	err = mt76u_resume_rx(&dev->mt76);
116 	if (err < 0)
117 		goto err;
118 
119 	err = mt76x2u_init_hardware(dev);
120 	if (err < 0)
121 		goto err;
122 
123 	return 0;
124 
125 err:
126 	mt76x2u_cleanup(dev);
127 	return err;
128 }
129 
130 MODULE_DEVICE_TABLE(usb, mt76x2u_device_table);
131 MODULE_FIRMWARE(MT7662_FIRMWARE);
132 MODULE_FIRMWARE(MT7662_ROM_PATCH);
133 
134 static struct usb_driver mt76x2u_driver = {
135 	.name		= KBUILD_MODNAME,
136 	.id_table	= mt76x2u_device_table,
137 	.probe		= mt76x2u_probe,
138 	.disconnect	= mt76x2u_disconnect,
139 #ifdef CONFIG_PM
140 	.suspend	= mt76x2u_suspend,
141 	.resume		= mt76x2u_resume,
142 	.reset_resume	= mt76x2u_resume,
143 #endif /* CONFIG_PM */
144 	.soft_unbind	= 1,
145 	.disable_hub_initiated_lpm = 1,
146 };
147 module_usb_driver(mt76x2u_driver);
148 
149 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
150 MODULE_LICENSE("Dual BSD/GPL");
151