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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "mt76x0.h"
#include "mcu.h"
#include "../mt76x02_usb.h"
static struct usb_device_id mt76x0_device_table[] = {
{ USB_DEVICE(0x148F, 0x7610) }, /* MT7610U */
{ USB_DEVICE(0x13B1, 0x003E) }, /* Linksys AE6000 */
{ USB_DEVICE(0x0E8D, 0x7610) }, /* Sabrent NTWLAC */
{ USB_DEVICE(0x7392, 0xa711) }, /* Edimax 7711mac */
{ USB_DEVICE(0x7392, 0xb711) }, /* Edimax / Elecom */
{ USB_DEVICE(0x148f, 0x761a) }, /* TP-Link TL-WDN5200 */
{ USB_DEVICE(0x148f, 0x760a) }, /* TP-Link unknown */
{ USB_DEVICE(0x0b05, 0x17d1) }, /* Asus USB-AC51 */
{ USB_DEVICE(0x0b05, 0x17db) }, /* Asus USB-AC50 */
{ USB_DEVICE(0x0df6, 0x0075) }, /* Sitecom WLA-3100 */
{ USB_DEVICE(0x2019, 0xab31) }, /* Planex GW-450D */
{ USB_DEVICE(0x2001, 0x3d02) }, /* D-LINK DWA-171 rev B1 */
{ USB_DEVICE(0x0586, 0x3425) }, /* Zyxel NWD6505 */
{ USB_DEVICE(0x07b8, 0x7610) }, /* AboCom AU7212 */
{ USB_DEVICE(0x04bb, 0x0951) }, /* I-O DATA WN-AC433UK */
{ USB_DEVICE(0x057c, 0x8502) }, /* AVM FRITZ!WLAN USB Stick AC 430 */
{ USB_DEVICE(0x293c, 0x5702) }, /* Comcast Xfinity KXW02AAA */
{ USB_DEVICE(0x20f4, 0x806b) }, /* TRENDnet TEW-806UBH */
{ USB_DEVICE(0x7392, 0xc711) }, /* Devolo Wifi ac Stick */
{ USB_DEVICE(0x0df6, 0x0079) }, /* Sitecom Europe B.V. ac Stick */
{ USB_DEVICE(0x2357, 0x0123) }, /* TP-LINK T2UHP */
/* TP-LINK Archer T1U */
{ USB_DEVICE(0x2357, 0x0105), .driver_info = 1, },
/* MT7630U */
{ USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7630, 0xff, 0x2, 0xff)},
/* MT7650U */
{ USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7650, 0xff, 0x2, 0xff)},
{ 0, }
};
static void mt76x0_init_usb_dma(struct mt76x02_dev *dev)
{
u32 val;
val = mt76_rr(dev, MT_USB_DMA_CFG);
val |= MT_USB_DMA_CFG_RX_BULK_EN |
MT_USB_DMA_CFG_TX_BULK_EN;
/* disable AGGR_BULK_RX in order to receive one
* frame in each rx urb and avoid copies
*/
val &= ~MT_USB_DMA_CFG_RX_BULK_AGG_EN;
mt76_wr(dev, MT_USB_DMA_CFG, val);
val = mt76_rr(dev, MT_COM_REG0);
if (val & 1)
dev_dbg(dev->mt76.dev, "MCU not ready\n");
val = mt76_rr(dev, MT_USB_DMA_CFG);
val |= MT_USB_DMA_CFG_RX_DROP_OR_PAD;
mt76_wr(dev, MT_USB_DMA_CFG, val);
val &= ~MT_USB_DMA_CFG_RX_DROP_OR_PAD;
mt76_wr(dev, MT_USB_DMA_CFG, val);
}
static void mt76x0u_cleanup(struct mt76x02_dev *dev)
{
clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
mt76x0_chip_onoff(dev, false, false);
mt76u_queues_deinit(&dev->mt76);
}
static void mt76x0u_stop(struct ieee80211_hw *hw)
{
struct mt76x02_dev *dev = hw->priv;
clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
cancel_delayed_work_sync(&dev->cal_work);
cancel_delayed_work_sync(&dev->mt76.mac_work);
mt76u_stop_tx(&dev->mt76);
mt76x02u_exit_beacon_config(dev);
if (test_bit(MT76_REMOVED, &dev->mphy.state))
return;
if (!mt76_poll(dev, MT_USB_DMA_CFG, MT_USB_DMA_CFG_TX_BUSY, 0, 1000))
dev_warn(dev->mt76.dev, "TX DMA did not stop\n");
mt76x0_mac_stop(dev);
if (!mt76_poll(dev, MT_USB_DMA_CFG, MT_USB_DMA_CFG_RX_BUSY, 0, 1000))
dev_warn(dev->mt76.dev, "RX DMA did not stop\n");
}
static int mt76x0u_start(struct ieee80211_hw *hw)
{
struct mt76x02_dev *dev = hw->priv;
int ret;
ret = mt76x02u_mac_start(dev);
if (ret)
return ret;
mt76x0_phy_calibrate(dev, true);
ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mt76.mac_work,
MT_MAC_WORK_INTERVAL);
ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work,
MT_CALIBRATE_INTERVAL);
set_bit(MT76_STATE_RUNNING, &dev->mphy.state);
return 0;
}
static const struct ieee80211_ops mt76x0u_ops = {
.tx = mt76x02_tx,
.start = mt76x0u_start,
.stop = mt76x0u_stop,
.add_interface = mt76x02_add_interface,
.remove_interface = mt76x02_remove_interface,
.config = mt76x0_config,
.configure_filter = mt76x02_configure_filter,
.bss_info_changed = mt76x02_bss_info_changed,
.sta_state = mt76_sta_state,
.sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
.set_key = mt76x02_set_key,
.conf_tx = mt76x02_conf_tx,
.sw_scan_start = mt76_sw_scan,
.sw_scan_complete = mt76x02_sw_scan_complete,
.ampdu_action = mt76x02_ampdu_action,
.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
.set_rts_threshold = mt76x02_set_rts_threshold,
.wake_tx_queue = mt76_wake_tx_queue,
.get_txpower = mt76_get_txpower,
.get_survey = mt76_get_survey,
.set_tim = mt76_set_tim,
.release_buffered_frames = mt76_release_buffered_frames,
.get_antenna = mt76_get_antenna,
};
static int mt76x0u_init_hardware(struct mt76x02_dev *dev, bool reset)
{
int err;
mt76x0_chip_onoff(dev, true, reset);
if (!mt76x02_wait_for_mac(&dev->mt76))
return -ETIMEDOUT;
err = mt76x0u_mcu_init(dev);
if (err < 0)
return err;
mt76x0_init_usb_dma(dev);
err = mt76x0_init_hardware(dev);
if (err < 0)
return err;
mt76x02u_init_beacon_config(dev);
mt76_rmw(dev, MT_US_CYC_CFG, MT_US_CYC_CNT, 0x1e);
mt76_wr(dev, MT_TXOP_CTRL_CFG,
FIELD_PREP(MT_TXOP_TRUN_EN, 0x3f) |
FIELD_PREP(MT_TXOP_EXT_CCA_DLY, 0x58));
return 0;
}
static int mt76x0u_register_device(struct mt76x02_dev *dev)
{
struct ieee80211_hw *hw = dev->mt76.hw;
struct mt76_usb *usb = &dev->mt76.usb;
int err;
usb->mcu.data = devm_kmalloc(dev->mt76.dev, MCU_RESP_URB_SIZE,
GFP_KERNEL);
if (!usb->mcu.data)
return -ENOMEM;
err = mt76u_alloc_queues(&dev->mt76);
if (err < 0)
goto out_err;
err = mt76x0u_init_hardware(dev, true);
if (err < 0)
goto out_err;
/* check hw sg support in order to enable AMSDU */
hw->max_tx_fragments = dev->mt76.usb.sg_en ? MT_TX_SG_MAX_SIZE : 1;
err = mt76x0_register_device(dev);
if (err < 0)
goto out_err;
set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
return 0;
out_err:
mt76x0u_cleanup(dev);
return err;
}
static int mt76x0u_probe(struct usb_interface *usb_intf,
const struct usb_device_id *id)
{
static const struct mt76_driver_ops drv_ops = {
.drv_flags = MT_DRV_SW_RX_AIRTIME,
.survey_flags = SURVEY_INFO_TIME_TX,
.update_survey = mt76x02_update_channel,
.tx_prepare_skb = mt76x02u_tx_prepare_skb,
.tx_complete_skb = mt76x02u_tx_complete_skb,
.tx_status_data = mt76x02_tx_status_data,
.rx_skb = mt76x02_queue_rx_skb,
.sta_ps = mt76x02_sta_ps,
.sta_add = mt76x02_sta_add,
.sta_remove = mt76x02_sta_remove,
};
struct usb_device *usb_dev = interface_to_usbdev(usb_intf);
struct mt76x02_dev *dev;
struct mt76_dev *mdev;
u32 mac_rev;
int ret;
mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), &mt76x0u_ops,
&drv_ops);
if (!mdev)
return -ENOMEM;
dev = container_of(mdev, struct mt76x02_dev, mt76);
mutex_init(&dev->phy_mutex);
/* Quirk for Archer T1U */
if (id->driver_info)
dev->no_2ghz = true;
usb_dev = usb_get_dev(usb_dev);
usb_reset_device(usb_dev);
usb_set_intfdata(usb_intf, dev);
mt76x02u_init_mcu(mdev);
ret = mt76u_init(mdev, usb_intf, false);
if (ret)
goto err;
/* Disable the HW, otherwise MCU fail to initialize on hot reboot */
mt76x0_chip_onoff(dev, false, false);
if (!mt76x02_wait_for_mac(mdev)) {
ret = -ETIMEDOUT;
goto err;
}
mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
mac_rev = mt76_rr(dev, MT_MAC_CSR0);
dev_info(mdev->dev, "ASIC revision: %08x MAC revision: %08x\n",
mdev->rev, mac_rev);
if (!is_mt76x0(dev)) {
ret = -ENODEV;
goto err;
}
/* Note: vendor driver skips this check for MT76X0U */
if (!(mt76_rr(dev, MT_EFUSE_CTRL) & MT_EFUSE_CTRL_SEL))
dev_warn(mdev->dev, "Warning: eFUSE not present\n");
ret = mt76x0u_register_device(dev);
if (ret < 0)
goto err;
return 0;
err:
usb_set_intfdata(usb_intf, NULL);
usb_put_dev(interface_to_usbdev(usb_intf));
mt76u_deinit(&dev->mt76);
ieee80211_free_hw(mdev->hw);
return ret;
}
static void mt76x0_disconnect(struct usb_interface *usb_intf)
{
struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);
bool initialized = test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
if (!initialized)
return;
ieee80211_unregister_hw(dev->mt76.hw);
mt76x0u_cleanup(dev);
usb_set_intfdata(usb_intf, NULL);
usb_put_dev(interface_to_usbdev(usb_intf));
mt76u_deinit(&dev->mt76);
ieee80211_free_hw(dev->mt76.hw);
}
static int __maybe_unused mt76x0_suspend(struct usb_interface *usb_intf,
pm_message_t state)
{
struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);
mt76u_stop_rx(&dev->mt76);
clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
mt76x0_chip_onoff(dev, false, false);
return 0;
}
static int __maybe_unused mt76x0_resume(struct usb_interface *usb_intf)
{
struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);
int ret;
ret = mt76u_resume_rx(&dev->mt76);
if (ret < 0)
goto err;
ret = mt76x0u_init_hardware(dev, false);
if (ret)
goto err;
return 0;
err:
mt76x0u_cleanup(dev);
return ret;
}
MODULE_DEVICE_TABLE(usb, mt76x0_device_table);
MODULE_FIRMWARE(MT7610E_FIRMWARE);
MODULE_FIRMWARE(MT7610U_FIRMWARE);
MODULE_LICENSE("GPL");
static struct usb_driver mt76x0_driver = {
.name = KBUILD_MODNAME,
.id_table = mt76x0_device_table,
.probe = mt76x0u_probe,
.disconnect = mt76x0_disconnect,
.suspend = mt76x0_suspend,
.resume = mt76x0_resume,
.reset_resume = mt76x0_resume,
.soft_unbind = 1,
.disable_hub_initiated_lpm = 1,
};
module_usb_driver(mt76x0_driver);
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