LXR linux/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c

   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
  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(0x0846, 0x9053) }, /* Netgear A6210 */
  20        { USB_DEVICE(0x045e, 0x02e6) }, /* XBox One Wireless Adapter */
  21        { },
  22};
  23
  24static 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                .update_survey = mt76x02_update_channel,
  29                .tx_prepare_skb = mt76x02u_tx_prepare_skb,
  30                .tx_complete_skb = mt76x02u_tx_complete_skb,
  31                .tx_status_data = mt76x02_tx_status_data,
  32                .rx_skb = mt76x02_queue_rx_skb,
  33                .sta_ps = mt76x02_sta_ps,
  34                .sta_add = mt76x02_sta_add,
  35                .sta_remove = mt76x02_sta_remove,
  36        };
  37        struct usb_device *udev = interface_to_usbdev(intf);
  38        struct mt76x02_dev *dev;
  39        struct mt76_dev *mdev;
  40        int err;
  41
  42        mdev = mt76_alloc_device(&udev->dev, sizeof(*dev), &mt76x2u_ops,
  43                                 &drv_ops);
  44        if (!mdev)
  45                return -ENOMEM;
  46
  47        dev = container_of(mdev, struct mt76x02_dev, mt76);
  48
  49        udev = usb_get_dev(udev);
  50        usb_reset_device(udev);
  51
  52        usb_set_intfdata(intf, dev);
  53
  54        mt76x02u_init_mcu(mdev);
  55        err = mt76u_init(mdev, intf);
  56        if (err < 0)
  57                goto err;
  58
  59        mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
  60        dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
  61        if (!is_mt76x2(dev)) {
  62                err = -ENODEV;
  63                goto err;
  64        }
  65
  66        err = mt76x2u_register_device(dev);
  67        if (err < 0)
  68                goto err;
  69
  70        return 0;
  71
  72err:
  73        ieee80211_free_hw(mt76_hw(dev));
  74        usb_set_intfdata(intf, NULL);
  75        usb_put_dev(udev);
  76
  77        return err;
  78}
  79
  80static void mt76x2u_disconnect(struct usb_interface *intf)
  81{
  82        struct usb_device *udev = interface_to_usbdev(intf);
  83        struct mt76x02_dev *dev = usb_get_intfdata(intf);
  84        struct ieee80211_hw *hw = mt76_hw(dev);
  85
  86        set_bit(MT76_REMOVED, &dev->mt76.state);
  87        ieee80211_unregister_hw(hw);
  88        mt76x2u_cleanup(dev);
  89
  90        ieee80211_free_hw(hw);
  91        usb_set_intfdata(intf, NULL);
  92        usb_put_dev(udev);
  93}
  94
  95static int __maybe_unused mt76x2u_suspend(struct usb_interface *intf,
  96                                          pm_message_t state)
  97{
  98        struct mt76x02_dev *dev = usb_get_intfdata(intf);
  99
 100        mt76u_stop_rx(&dev->mt76);
 101
 102        return 0;
 103}
 104
 105static int __maybe_unused mt76x2u_resume(struct usb_interface *intf)
 106{
 107        struct mt76x02_dev *dev = usb_get_intfdata(intf);
 108        int err;
 109
 110        err = mt76u_resume_rx(&dev->mt76);
 111        if (err < 0)
 112                goto err;
 113
 114        err = mt76x2u_init_hardware(dev);
 115        if (err < 0)
 116                goto err;
 117
 118        return 0;
 119
 120err:
 121        mt76x2u_cleanup(dev);
 122        return err;
 123}
 124
 125MODULE_DEVICE_TABLE(usb, mt76x2u_device_table);
 126MODULE_FIRMWARE(MT7662_FIRMWARE);
 127MODULE_FIRMWARE(MT7662_ROM_PATCH);
 128
 129static struct usb_driver mt76x2u_driver = {
 130        .name           = KBUILD_MODNAME,
 131        .id_table       = mt76x2u_device_table,
 132        .probe          = mt76x2u_probe,
 133        .disconnect     = mt76x2u_disconnect,
 134#ifdef CONFIG_PM
 135        .suspend        = mt76x2u_suspend,
 136        .resume         = mt76x2u_resume,
 137        .reset_resume   = mt76x2u_resume,
 138#endif /* CONFIG_PM */
 139        .soft_unbind    = 1,
 140        .disable_hub_initiated_lpm = 1,
 141};
 142module_usb_driver(mt76x2u_driver);
 143
 144MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
 145MODULE_LICENSE("Dual BSD/GPL");
 146