root/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c

DEFINITIONS

1. mt76x2u_probe
2. mt76x2u_disconnect
3. mt76x2u_suspend
4. mt76x2u_resume

   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         { USB_DEVICE(0x045e, 0x02fe) }, /* XBox One Wireless Adapter */
  22         { },
  23 };
  24 
  25 static int mt76x2u_probe(struct usb_interface *intf,
  26                          const struct usb_device_id *id)
  27 {
  28         static const struct mt76_driver_ops drv_ops = {
  29                 .update_survey = mt76x02_update_channel,
  30                 .tx_prepare_skb = mt76x02u_tx_prepare_skb,
  31                 .tx_complete_skb = mt76x02u_tx_complete_skb,
  32                 .tx_status_data = mt76x02_tx_status_data,
  33                 .rx_skb = mt76x02_queue_rx_skb,
  34                 .sta_ps = mt76x02_sta_ps,
  35                 .sta_add = mt76x02_sta_add,
  36                 .sta_remove = mt76x02_sta_remove,
  37         };
  38         struct usb_device *udev = interface_to_usbdev(intf);
  39         struct mt76x02_dev *dev;
  40         struct mt76_dev *mdev;
  41         int err;
  42 
  43         mdev = mt76_alloc_device(&intf->dev, sizeof(*dev), &mt76x2u_ops,
  44                                  &drv_ops);
  45         if (!mdev)
  46                 return -ENOMEM;
  47 
  48         dev = container_of(mdev, struct mt76x02_dev, mt76);
  49 
  50         udev = usb_get_dev(udev);
  51         usb_reset_device(udev);
  52 
  53         usb_set_intfdata(intf, dev);
  54 
  55         mt76x02u_init_mcu(mdev);
  56         err = mt76u_init(mdev, intf);
  57         if (err < 0)
  58                 goto err;
  59 
  60         mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
  61         dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
  62         if (!is_mt76x2(dev)) {
  63                 err = -ENODEV;
  64                 goto err;
  65         }
  66 
  67         err = mt76x2u_register_device(dev);
  68         if (err < 0)
  69                 goto err;
  70 
  71         return 0;
  72 
  73 err:
  74         ieee80211_free_hw(mt76_hw(dev));
  75         usb_set_intfdata(intf, NULL);
  76         usb_put_dev(udev);
  77 
  78         return err;
  79 }
  80 
  81 static void mt76x2u_disconnect(struct usb_interface *intf)
  82 {
  83         struct usb_device *udev = interface_to_usbdev(intf);
  84         struct mt76x02_dev *dev = usb_get_intfdata(intf);
  85         struct ieee80211_hw *hw = mt76_hw(dev);
  86 
  87         set_bit(MT76_REMOVED, &dev->mt76.state);
  88         ieee80211_unregister_hw(hw);
  89         mt76x2u_cleanup(dev);
  90 
  91         ieee80211_free_hw(hw);
  92         usb_set_intfdata(intf, NULL);
  93         usb_put_dev(udev);
  94 }
  95 
  96 static int __maybe_unused mt76x2u_suspend(struct usb_interface *intf,
  97                                           pm_message_t state)
  98 {
  99         struct mt76x02_dev *dev = usb_get_intfdata(intf);
 100 
 101         mt76u_stop_rx(&dev->mt76);
 102 
 103         return 0;
 104 }
 105 
 106 static int __maybe_unused mt76x2u_resume(struct usb_interface *intf)
 107 {
 108         struct mt76x02_dev *dev = usb_get_intfdata(intf);
 109         int err;
 110 
 111         err = mt76u_resume_rx(&dev->mt76);
 112         if (err < 0)
 113                 goto err;
 114 
 115         err = mt76x2u_init_hardware(dev);
 116         if (err < 0)
 117                 goto err;
 118 
 119         return 0;
 120 
 121 err:
 122         mt76x2u_cleanup(dev);
 123         return err;
 124 }
 125 
 126 MODULE_DEVICE_TABLE(usb, mt76x2u_device_table);
 127 MODULE_FIRMWARE(MT7662_FIRMWARE);
 128 MODULE_FIRMWARE(MT7662_ROM_PATCH);
 129 
 130 static struct usb_driver mt76x2u_driver = {
 131         .name           = KBUILD_MODNAME,
 132         .id_table       = mt76x2u_device_table,
 133         .probe          = mt76x2u_probe,
 134         .disconnect     = mt76x2u_disconnect,
 135 #ifdef CONFIG_PM
 136         .suspend        = mt76x2u_suspend,
 137         .resume         = mt76x2u_resume,
 138         .reset_resume   = mt76x2u_resume,
 139 #endif /* CONFIG_PM */
 140         .soft_unbind    = 1,
 141         .disable_hub_initiated_lpm = 1,
 142 };
 143 module_usb_driver(mt76x2u_driver);
 144 
 145 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
 146 MODULE_LICENSE("Dual BSD/GPL");