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

   1/*
   2 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
   3 *
   4 * Permission to use, copy, modify, and/or distribute this software for any
   5 * purpose with or without fee is hereby granted, provided that the above
   6 * copyright notice and this permission notice appear in all copies.
   7 *
   8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15 */
  16
  17#include <linux/kernel.h>
  18#include <linux/module.h>
  19
  20#include "../mt76x02_usb.h"
  21#include "mt76x2u.h"
  22
  23static const struct usb_device_id mt76x2u_device_table[] = {
  24        { USB_DEVICE(0x0b05, 0x1833) }, /* Asus USB-AC54 */
  25        { USB_DEVICE(0x0b05, 0x17eb) }, /* Asus USB-AC55 */
  26        { USB_DEVICE(0x0b05, 0x180b) }, /* Asus USB-N53 B1 */
  27        { USB_DEVICE(0x0e8d, 0x7612) }, /* Aukey USBAC1200 - Alfa AWUS036ACM */
  28        { USB_DEVICE(0x057c, 0x8503) }, /* Avm FRITZ!WLAN AC860 */
  29        { USB_DEVICE(0x7392, 0xb711) }, /* Edimax EW 7722 UAC */
  30        { USB_DEVICE(0x0846, 0x9053) }, /* Netgear A6210 */
  31        { USB_DEVICE(0x045e, 0x02e6) }, /* XBox One Wireless Adapter */
  32        { },
  33};
  34
  35static int mt76x2u_probe(struct usb_interface *intf,
  36                         const struct usb_device_id *id)
  37{
  38        static const struct mt76_driver_ops drv_ops = {
  39                .tx_prepare_skb = mt76x02u_tx_prepare_skb,
  40                .tx_complete_skb = mt76x02u_tx_complete_skb,
  41                .tx_status_data = mt76x02_tx_status_data,
  42                .rx_skb = mt76x02_queue_rx_skb,
  43                .sta_ps = mt76x02_sta_ps,
  44                .sta_add = mt76x02_sta_add,
  45                .sta_remove = mt76x02_sta_remove,
  46        };
  47        struct usb_device *udev = interface_to_usbdev(intf);
  48        struct mt76x02_dev *dev;
  49        struct mt76_dev *mdev;
  50        int err;
  51
  52        mdev = mt76_alloc_device(&udev->dev, sizeof(*dev), &mt76x2u_ops,
  53                                 &drv_ops);
  54        if (!mdev)
  55                return -ENOMEM;
  56
  57        dev = container_of(mdev, struct mt76x02_dev, mt76);
  58
  59        udev = usb_get_dev(udev);
  60        usb_reset_device(udev);
  61
  62        usb_set_intfdata(intf, dev);
  63
  64        mt76x02u_init_mcu(mdev);
  65        err = mt76u_init(mdev, intf);
  66        if (err < 0)
  67                goto err;
  68
  69        mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
  70        dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
  71        if (!is_mt76x2(dev)) {
  72                err = -ENODEV;
  73                goto err;
  74        }
  75
  76        err = mt76x2u_register_device(dev);
  77        if (err < 0)
  78                goto err;
  79
  80        return 0;
  81
  82err:
  83        ieee80211_free_hw(mt76_hw(dev));
  84        usb_set_intfdata(intf, NULL);
  85        usb_put_dev(udev);
  86
  87        return err;
  88}
  89
  90static void mt76x2u_disconnect(struct usb_interface *intf)
  91{
  92        struct usb_device *udev = interface_to_usbdev(intf);
  93        struct mt76x02_dev *dev = usb_get_intfdata(intf);
  94        struct ieee80211_hw *hw = mt76_hw(dev);
  95
  96        set_bit(MT76_REMOVED, &dev->mt76.state);
  97        ieee80211_unregister_hw(hw);
  98        mt76x2u_cleanup(dev);
  99
 100        ieee80211_free_hw(hw);
 101        usb_set_intfdata(intf, NULL);
 102        usb_put_dev(udev);
 103}
 104
 105static int __maybe_unused mt76x2u_suspend(struct usb_interface *intf,
 106                                          pm_message_t state)
 107{
 108        struct mt76x02_dev *dev = usb_get_intfdata(intf);
 109
 110        mt76u_stop_rx(&dev->mt76);
 111
 112        return 0;
 113}
 114
 115static int __maybe_unused mt76x2u_resume(struct usb_interface *intf)
 116{
 117        struct mt76x02_dev *dev = usb_get_intfdata(intf);
 118        int err;
 119
 120        err = mt76u_resume_rx(&dev->mt76);
 121        if (err < 0)
 122                goto err;
 123
 124        err = mt76x2u_init_hardware(dev);
 125        if (err < 0)
 126                goto err;
 127
 128        return 0;
 129
 130err:
 131        mt76x2u_cleanup(dev);
 132        return err;
 133}
 134
 135MODULE_DEVICE_TABLE(usb, mt76x2u_device_table);
 136MODULE_FIRMWARE(MT7662_FIRMWARE);
 137MODULE_FIRMWARE(MT7662_ROM_PATCH);
 138
 139static struct usb_driver mt76x2u_driver = {
 140        .name           = KBUILD_MODNAME,
 141        .id_table       = mt76x2u_device_table,
 142        .probe          = mt76x2u_probe,
 143        .disconnect     = mt76x2u_disconnect,
 144#ifdef CONFIG_PM
 145        .suspend        = mt76x2u_suspend,
 146        .resume         = mt76x2u_resume,
 147        .reset_resume   = mt76x2u_resume,
 148#endif /* CONFIG_PM */
 149        .soft_unbind    = 1,
 150        .disable_hub_initiated_lpm = 1,
 151};
 152module_usb_driver(mt76x2u_driver);
 153
 154MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
 155MODULE_LICENSE("Dual BSD/GPL");
 156