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
  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);
  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->mt76.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");