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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>4 */5 6#include <linux/kernel.h>7#include <linux/module.h>8#include <linux/usb.h>9 10#include "mt76x0.h"11#include "mcu.h"12#include "../mt76x02_usb.h"13 14static struct usb_device_id mt76x0_device_table[] = {15 { USB_DEVICE(0x148F, 0x7610) }, /* MT7610U */16 { USB_DEVICE(0x13B1, 0x003E) }, /* Linksys AE6000 */17 { USB_DEVICE(0x0E8D, 0x7610) }, /* Sabrent NTWLAC */18 { USB_DEVICE(0x7392, 0xa711) }, /* Edimax 7711mac */19 { USB_DEVICE(0x7392, 0xb711) }, /* Edimax / Elecom */20 { USB_DEVICE(0x148f, 0x761a) }, /* TP-Link TL-WDN5200 */21 { USB_DEVICE(0x148f, 0x760a) }, /* TP-Link unknown */22 { USB_DEVICE(0x0b05, 0x17d1) }, /* Asus USB-AC51 */23 { USB_DEVICE(0x0b05, 0x17db) }, /* Asus USB-AC50 */24 { USB_DEVICE(0x0df6, 0x0075) }, /* Sitecom WLA-3100 */25 { USB_DEVICE(0x2019, 0xab31) }, /* Planex GW-450D */26 { USB_DEVICE(0x2001, 0x3d02) }, /* D-LINK DWA-171 rev B1 */27 { USB_DEVICE(0x0586, 0x3425) }, /* Zyxel NWD6505 */28 { USB_DEVICE(0x07b8, 0x7610) }, /* AboCom AU7212 */29 { USB_DEVICE(0x04bb, 0x0951) }, /* I-O DATA WN-AC433UK */30 { USB_DEVICE(0x057c, 0x8502) }, /* AVM FRITZ!WLAN USB Stick AC 430 */31 { USB_DEVICE(0x293c, 0x5702) }, /* Comcast Xfinity KXW02AAA */32 { USB_DEVICE(0x20f4, 0x806b) }, /* TRENDnet TEW-806UBH */33 { USB_DEVICE(0x7392, 0xc711) }, /* Devolo Wifi ac Stick */34 { USB_DEVICE(0x0df6, 0x0079) }, /* Sitecom Europe B.V. ac Stick */35 { USB_DEVICE(0x2357, 0x0123) }, /* TP-LINK T2UHP_US_v1 */36 { USB_DEVICE(0x2357, 0x010b) }, /* TP-LINK T2UHP_UN_v1 */37 /* TP-LINK Archer T1U */38 { USB_DEVICE(0x2357, 0x0105), .driver_info = 1, },39 /* MT7630U */40 { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7630, 0xff, 0x2, 0xff)},41 /* MT7650U */42 { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7650, 0xff, 0x2, 0xff)},43 { 0, }44};45 46static void mt76x0_init_usb_dma(struct mt76x02_dev *dev)47{48 u32 val;49 50 val = mt76_rr(dev, MT_USB_DMA_CFG);51 52 val |= MT_USB_DMA_CFG_RX_BULK_EN |53 MT_USB_DMA_CFG_TX_BULK_EN;54 55 /* disable AGGR_BULK_RX in order to receive one56 * frame in each rx urb and avoid copies57 */58 val &= ~MT_USB_DMA_CFG_RX_BULK_AGG_EN;59 mt76_wr(dev, MT_USB_DMA_CFG, val);60 61 val = mt76_rr(dev, MT_COM_REG0);62 if (val & 1)63 dev_dbg(dev->mt76.dev, "MCU not ready\n");64 65 val = mt76_rr(dev, MT_USB_DMA_CFG);66 67 val |= MT_USB_DMA_CFG_RX_DROP_OR_PAD;68 mt76_wr(dev, MT_USB_DMA_CFG, val);69 val &= ~MT_USB_DMA_CFG_RX_DROP_OR_PAD;70 mt76_wr(dev, MT_USB_DMA_CFG, val);71}72 73static void mt76x0u_cleanup(struct mt76x02_dev *dev)74{75 clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);76 mt76x0_chip_onoff(dev, false, false);77 mt76u_queues_deinit(&dev->mt76);78}79 80static void mt76x0u_stop(struct ieee80211_hw *hw, bool suspend)81{82 struct mt76x02_dev *dev = hw->priv;83 84 clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);85 cancel_delayed_work_sync(&dev->cal_work);86 cancel_delayed_work_sync(&dev->mphy.mac_work);87 mt76u_stop_tx(&dev->mt76);88 mt76x02u_exit_beacon_config(dev);89 90 if (test_bit(MT76_REMOVED, &dev->mphy.state))91 return;92 93 if (!mt76_poll(dev, MT_USB_DMA_CFG, MT_USB_DMA_CFG_TX_BUSY, 0, 1000))94 dev_warn(dev->mt76.dev, "TX DMA did not stop\n");95 96 mt76x0_mac_stop(dev);97 98 if (!mt76_poll(dev, MT_USB_DMA_CFG, MT_USB_DMA_CFG_RX_BUSY, 0, 1000))99 dev_warn(dev->mt76.dev, "RX DMA did not stop\n");100}101 102static int mt76x0u_start(struct ieee80211_hw *hw)103{104 struct mt76x02_dev *dev = hw->priv;105 int ret;106 107 ret = mt76x02u_mac_start(dev);108 if (ret)109 return ret;110 111 mt76x0_phy_calibrate(dev, true);112 ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mphy.mac_work,113 MT_MAC_WORK_INTERVAL);114 ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work,115 MT_CALIBRATE_INTERVAL);116 set_bit(MT76_STATE_RUNNING, &dev->mphy.state);117 return 0;118}119 120static const struct ieee80211_ops mt76x0u_ops = {121 .add_chanctx = ieee80211_emulate_add_chanctx,122 .remove_chanctx = ieee80211_emulate_remove_chanctx,123 .change_chanctx = ieee80211_emulate_change_chanctx,124 .switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,125 .tx = mt76x02_tx,126 .start = mt76x0u_start,127 .stop = mt76x0u_stop,128 .add_interface = mt76x02_add_interface,129 .remove_interface = mt76x02_remove_interface,130 .config = mt76x0_config,131 .configure_filter = mt76x02_configure_filter,132 .bss_info_changed = mt76x02_bss_info_changed,133 .sta_state = mt76_sta_state,134 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,135 .set_key = mt76x02_set_key,136 .conf_tx = mt76x02_conf_tx,137 .sw_scan_start = mt76_sw_scan,138 .sw_scan_complete = mt76x02_sw_scan_complete,139 .ampdu_action = mt76x02_ampdu_action,140 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,141 .set_rts_threshold = mt76x02_set_rts_threshold,142 .wake_tx_queue = mt76_wake_tx_queue,143 .get_txpower = mt76_get_txpower,144 .get_survey = mt76_get_survey,145 .set_tim = mt76_set_tim,146 .release_buffered_frames = mt76_release_buffered_frames,147 .get_antenna = mt76_get_antenna,148 .set_sar_specs = mt76x0_set_sar_specs,149};150 151static int mt76x0u_init_hardware(struct mt76x02_dev *dev, bool reset)152{153 int err;154 155 mt76x0_chip_onoff(dev, true, reset);156 157 if (!mt76x02_wait_for_mac(&dev->mt76))158 return -ETIMEDOUT;159 160 err = mt76x0u_mcu_init(dev);161 if (err < 0)162 return err;163 164 mt76x0_init_usb_dma(dev);165 err = mt76x0_init_hardware(dev);166 if (err < 0)167 return err;168 169 mt76x02u_init_beacon_config(dev);170 171 mt76_rmw(dev, MT_US_CYC_CFG, MT_US_CYC_CNT, 0x1e);172 mt76_wr(dev, MT_TXOP_CTRL_CFG,173 FIELD_PREP(MT_TXOP_TRUN_EN, 0x3f) |174 FIELD_PREP(MT_TXOP_EXT_CCA_DLY, 0x58));175 176 return 0;177}178 179static int mt76x0u_register_device(struct mt76x02_dev *dev)180{181 struct ieee80211_hw *hw = dev->mt76.hw;182 struct mt76_usb *usb = &dev->mt76.usb;183 int err;184 185 usb->mcu.data = devm_kmalloc(dev->mt76.dev, MCU_RESP_URB_SIZE,186 GFP_KERNEL);187 if (!usb->mcu.data)188 return -ENOMEM;189 190 err = mt76u_alloc_queues(&dev->mt76);191 if (err < 0)192 goto out_err;193 194 err = mt76x0u_init_hardware(dev, true);195 if (err < 0)196 goto out_err;197 198 /* check hw sg support in order to enable AMSDU */199 hw->max_tx_fragments = dev->mt76.usb.sg_en ? MT_TX_SG_MAX_SIZE : 1;200 err = mt76x0_register_device(dev);201 if (err < 0)202 goto out_err;203 204 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);205 206 return 0;207 208out_err:209 mt76x0u_cleanup(dev);210 return err;211}212 213static int mt76x0u_probe(struct usb_interface *usb_intf,214 const struct usb_device_id *id)215{216 static const struct mt76_driver_ops drv_ops = {217 .drv_flags = MT_DRV_SW_RX_AIRTIME,218 .survey_flags = SURVEY_INFO_TIME_TX,219 .update_survey = mt76x02_update_channel,220 .set_channel = mt76x0_set_channel,221 .tx_prepare_skb = mt76x02u_tx_prepare_skb,222 .tx_complete_skb = mt76x02u_tx_complete_skb,223 .tx_status_data = mt76x02_tx_status_data,224 .rx_skb = mt76x02_queue_rx_skb,225 .sta_ps = mt76x02_sta_ps,226 .sta_add = mt76x02_sta_add,227 .sta_remove = mt76x02_sta_remove,228 };229 struct usb_device *usb_dev = interface_to_usbdev(usb_intf);230 struct mt76x02_dev *dev;231 struct mt76_dev *mdev;232 u32 mac_rev;233 int ret;234 235 mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), &mt76x0u_ops,236 &drv_ops);237 if (!mdev)238 return -ENOMEM;239 240 dev = container_of(mdev, struct mt76x02_dev, mt76);241 mutex_init(&dev->phy_mutex);242 243 /* Quirk for Archer T1U */244 if (id->driver_info)245 dev->no_2ghz = true;246 247 usb_dev = usb_get_dev(usb_dev);248 usb_reset_device(usb_dev);249 250 usb_set_intfdata(usb_intf, dev);251 252 mt76x02u_init_mcu(mdev);253 ret = mt76u_init(mdev, usb_intf);254 if (ret)255 goto err;256 257 /* Disable the HW, otherwise MCU fail to initialize on hot reboot */258 mt76x0_chip_onoff(dev, false, false);259 260 if (!mt76x02_wait_for_mac(mdev)) {261 ret = -ETIMEDOUT;262 goto err;263 }264 265 mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);266 mac_rev = mt76_rr(dev, MT_MAC_CSR0);267 dev_info(mdev->dev, "ASIC revision: %08x MAC revision: %08x\n",268 mdev->rev, mac_rev);269 if (!is_mt76x0(dev)) {270 ret = -ENODEV;271 goto err;272 }273 274 /* Note: vendor driver skips this check for MT76X0U */275 if (!(mt76_rr(dev, MT_EFUSE_CTRL) & MT_EFUSE_CTRL_SEL))276 dev_warn(mdev->dev, "Warning: eFUSE not present\n");277 278 ret = mt76x0u_register_device(dev);279 if (ret < 0)280 goto err;281 282 return 0;283 284err:285 usb_set_intfdata(usb_intf, NULL);286 usb_put_dev(interface_to_usbdev(usb_intf));287 mt76u_queues_deinit(&dev->mt76);288 mt76_free_device(&dev->mt76);289 290 return ret;291}292 293static void mt76x0_disconnect(struct usb_interface *usb_intf)294{295 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);296 bool initialized = test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);297 298 if (!initialized)299 return;300 301 ieee80211_unregister_hw(dev->mt76.hw);302 mt76x0u_cleanup(dev);303 304 usb_set_intfdata(usb_intf, NULL);305 usb_put_dev(interface_to_usbdev(usb_intf));306 307 mt76_free_device(&dev->mt76);308}309 310static int __maybe_unused mt76x0_suspend(struct usb_interface *usb_intf,311 pm_message_t state)312{313 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);314 315 mt76u_stop_rx(&dev->mt76);316 clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);317 mt76x0_chip_onoff(dev, false, false);318 319 return 0;320}321 322static int __maybe_unused mt76x0_resume(struct usb_interface *usb_intf)323{324 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);325 int ret;326 327 ret = mt76u_resume_rx(&dev->mt76);328 if (ret < 0)329 goto err;330 331 ret = mt76x0u_init_hardware(dev, false);332 if (ret)333 goto err;334 335 return 0;336err:337 mt76x0u_cleanup(dev);338 return ret;339}340 341MODULE_DEVICE_TABLE(usb, mt76x0_device_table);342MODULE_FIRMWARE(MT7610E_FIRMWARE);343MODULE_FIRMWARE(MT7610U_FIRMWARE);344MODULE_DESCRIPTION("MediaTek MT76x0U (USB) wireless driver");345MODULE_LICENSE("GPL");346 347static struct usb_driver mt76x0_driver = {348 .name = KBUILD_MODNAME,349 .id_table = mt76x0_device_table,350 .probe = mt76x0u_probe,351 .disconnect = mt76x0_disconnect,352 .suspend = mt76x0_suspend,353 .resume = mt76x0_resume,354 .reset_resume = mt76x0_resume,355 .soft_unbind = 1,356 .disable_hub_initiated_lpm = 1,357};358module_usb_driver(mt76x0_driver);359