usb.c

  1// SPDX-License-Identifier: BSD-3-Clause-Clear
  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
 12static 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(0x0471, 0x2126) }, /* LiteOn WN4516R module, nonstandard USB connector */
 21	{ USB_DEVICE(0x0471, 0x7600) }, /* LiteOn WN4519R module, nonstandard USB connector */
 22	{ USB_DEVICE(0x2c4e, 0x0103) },	/* Mercury UD13 */
 23	{ USB_DEVICE(0x0846, 0x9014) },	/* Netgear WNDA3100v3 */
 24	{ USB_DEVICE(0x0846, 0x9053) },	/* Netgear A6210 */
 25	{ USB_DEVICE(0x045e, 0x02e6) },	/* XBox One Wireless Adapter */
 26	{ USB_DEVICE(0x045e, 0x02fe) },	/* XBox One Wireless Adapter */
 27	{ USB_DEVICE(0x2357, 0x0137) },	/* TP-Link TL-WDN6200 */
 28	{ },
 29};
 30
 31static int mt76x2u_probe(struct usb_interface *intf,
 32			 const struct usb_device_id *id)
 33{
 34	static const struct mt76_driver_ops drv_ops = {
 35		.drv_flags = MT_DRV_SW_RX_AIRTIME |
 36			     MT_DRV_IGNORE_TXS_FAILED,
 37		.survey_flags = SURVEY_INFO_TIME_TX,
 38		.update_survey = mt76x02_update_channel,
 39		.set_channel = mt76x2u_set_channel,
 40		.tx_prepare_skb = mt76x02u_tx_prepare_skb,
 41		.tx_complete_skb = mt76x02u_tx_complete_skb,
 42		.tx_status_data = mt76x02_tx_status_data,
 43		.rx_skb = mt76x02_queue_rx_skb,
 44		.sta_ps = mt76x02_sta_ps,
 45		.sta_add = mt76x02_sta_add,
 46		.sta_remove = mt76x02_sta_remove,
 47	};
 48	struct usb_device *udev = interface_to_usbdev(intf);
 49	struct mt76x02_dev *dev;
 50	struct mt76_dev *mdev;
 51	int err;
 52
 53	mdev = mt76_alloc_device(&intf->dev, sizeof(*dev), &mt76x2u_ops,
 54				 &drv_ops);
 55	if (!mdev)
 56		return -ENOMEM;
 57
 58	dev = container_of(mdev, struct mt76x02_dev, mt76);
 59
 60	udev = usb_get_dev(udev);
 61	usb_reset_device(udev);
 62
 63	usb_set_intfdata(intf, dev);
 64
 65	mt76x02u_init_mcu(mdev);
 66	err = mt76u_init(mdev, intf);
 67	if (err < 0)
 68		goto err;
 69
 70	mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
 71	dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
 72	if (!is_mt76x2(dev)) {
 73		err = -ENODEV;
 74		goto err;
 75	}
 76
 77	err = mt76x2u_register_device(dev);
 78	if (err < 0)
 79		goto err;
 80
 81	return 0;
 82
 83err:
 84	mt76u_queues_deinit(&dev->mt76);
 85	mt76_free_device(&dev->mt76);
 86	usb_set_intfdata(intf, NULL);
 87	usb_put_dev(udev);
 88
 89	return err;
 90}
 91
 92static void mt76x2u_disconnect(struct usb_interface *intf)
 93{
 94	struct usb_device *udev = interface_to_usbdev(intf);
 95	struct mt76x02_dev *dev = usb_get_intfdata(intf);
 96	struct ieee80211_hw *hw = mt76_hw(dev);
 97
 98	set_bit(MT76_REMOVED, &dev->mphy.state);
 99	ieee80211_unregister_hw(hw);
100	mt76x2u_cleanup(dev);
101	mt76_free_device(&dev->mt76);
102	usb_set_intfdata(intf, NULL);
103	usb_put_dev(udev);
104}
105
106static int __maybe_unused mt76x2u_suspend(struct usb_interface *intf,
107					  pm_message_t state)
108{
109	struct mt76x02_dev *dev = usb_get_intfdata(intf);
110
111	mt76u_stop_rx(&dev->mt76);
112
113	return 0;
114}
115
116static int __maybe_unused mt76x2u_resume(struct usb_interface *intf)
117{
118	struct mt76x02_dev *dev = usb_get_intfdata(intf);
119	int err;
120
121	err = mt76u_resume_rx(&dev->mt76);
122	if (err < 0)
123		goto err;
124
125	err = mt76x2u_init_hardware(dev);
126	if (err < 0)
127		goto err;
128
129	return 0;
130
131err:
132	mt76x2u_cleanup(dev);
133	return err;
134}
135
136MODULE_DEVICE_TABLE(usb, mt76x2u_device_table);
137MODULE_FIRMWARE(MT7662_FIRMWARE);
138MODULE_FIRMWARE(MT7662_ROM_PATCH);
139
140static struct usb_driver mt76x2u_driver = {
141	.name		= KBUILD_MODNAME,
142	.id_table	= mt76x2u_device_table,
143	.probe		= mt76x2u_probe,
144	.disconnect	= mt76x2u_disconnect,
145#ifdef CONFIG_PM
146	.suspend	= mt76x2u_suspend,
147	.resume		= mt76x2u_resume,
148	.reset_resume	= mt76x2u_resume,
149#endif /* CONFIG_PM */
150	.soft_unbind	= 1,
151	.disable_hub_initiated_lpm = 1,
152};
153module_usb_driver(mt76x2u_driver);
154
155MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
156MODULE_DESCRIPTION("MediaTek MT76x2U (USB) wireless driver");
157MODULE_LICENSE("Dual BSD/GPL");