1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 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 14 static 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 46 static 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 one 56 * frame in each rx urb and avoid copies 57 */ 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 73 static 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 80 static 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 } 101 102 static 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 } 119 120 static 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 }; 150 151 static 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 } 178 179 static 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; 207 208 out_err: 209 mt76x0u_cleanup(dev); 210 return err; 211 } 212 213 static 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 .tx_prepare_skb = mt76x02u_tx_prepare_skb, 221 .tx_complete_skb = mt76x02u_tx_complete_skb, 222 .tx_status_data = mt76x02_tx_status_data, 223 .rx_skb = mt76x02_queue_rx_skb, 224 .sta_ps = mt76x02_sta_ps, 225 .sta_add = mt76x02_sta_add, 226 .sta_remove = mt76x02_sta_remove, 227 }; 228 struct usb_device *usb_dev = interface_to_usbdev(usb_intf); 229 struct mt76x02_dev *dev; 230 struct mt76_dev *mdev; 231 u32 mac_rev; 232 int ret; 233 234 mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), &mt76x0u_ops, 235 &drv_ops); 236 if (!mdev) 237 return -ENOMEM; 238 239 dev = container_of(mdev, struct mt76x02_dev, mt76); 240 mutex_init(&dev->phy_mutex); 241 242 /* Quirk for Archer T1U */ 243 if (id->driver_info) 244 dev->no_2ghz = true; 245 246 usb_dev = usb_get_dev(usb_dev); 247 usb_reset_device(usb_dev); 248 249 usb_set_intfdata(usb_intf, dev); 250 251 mt76x02u_init_mcu(mdev); 252 ret = mt76u_init(mdev, usb_intf); 253 if (ret) 254 goto err; 255 256 /* Disable the HW, otherwise MCU fail to initialize on hot reboot */ 257 mt76x0_chip_onoff(dev, false, false); 258 259 if (!mt76x02_wait_for_mac(mdev)) { 260 ret = -ETIMEDOUT; 261 goto err; 262 } 263 264 mdev->rev = mt76_rr(dev, MT_ASIC_VERSION); 265 mac_rev = mt76_rr(dev, MT_MAC_CSR0); 266 dev_info(mdev->dev, "ASIC revision: %08x MAC revision: %08x\n", 267 mdev->rev, mac_rev); 268 if (!is_mt76x0(dev)) { 269 ret = -ENODEV; 270 goto err; 271 } 272 273 /* Note: vendor driver skips this check for MT76X0U */ 274 if (!(mt76_rr(dev, MT_EFUSE_CTRL) & MT_EFUSE_CTRL_SEL)) 275 dev_warn(mdev->dev, "Warning: eFUSE not present\n"); 276 277 ret = mt76x0u_register_device(dev); 278 if (ret < 0) 279 goto err; 280 281 return 0; 282 283 err: 284 usb_set_intfdata(usb_intf, NULL); 285 usb_put_dev(interface_to_usbdev(usb_intf)); 286 mt76u_queues_deinit(&dev->mt76); 287 mt76_free_device(&dev->mt76); 288 289 return ret; 290 } 291 292 static void mt76x0_disconnect(struct usb_interface *usb_intf) 293 { 294 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf); 295 bool initialized = test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 296 297 if (!initialized) 298 return; 299 300 ieee80211_unregister_hw(dev->mt76.hw); 301 mt76x0u_cleanup(dev); 302 303 usb_set_intfdata(usb_intf, NULL); 304 usb_put_dev(interface_to_usbdev(usb_intf)); 305 306 mt76_free_device(&dev->mt76); 307 } 308 309 static int __maybe_unused mt76x0_suspend(struct usb_interface *usb_intf, 310 pm_message_t state) 311 { 312 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf); 313 314 mt76u_stop_rx(&dev->mt76); 315 clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); 316 mt76x0_chip_onoff(dev, false, false); 317 318 return 0; 319 } 320 321 static int __maybe_unused mt76x0_resume(struct usb_interface *usb_intf) 322 { 323 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf); 324 int ret; 325 326 ret = mt76u_resume_rx(&dev->mt76); 327 if (ret < 0) 328 goto err; 329 330 ret = mt76x0u_init_hardware(dev, false); 331 if (ret) 332 goto err; 333 334 return 0; 335 err: 336 mt76x0u_cleanup(dev); 337 return ret; 338 } 339 340 MODULE_DEVICE_TABLE(usb, mt76x0_device_table); 341 MODULE_FIRMWARE(MT7610E_FIRMWARE); 342 MODULE_FIRMWARE(MT7610U_FIRMWARE); 343 MODULE_DESCRIPTION("MediaTek MT76x0U (USB) wireless driver"); 344 MODULE_LICENSE("GPL"); 345 346 static struct usb_driver mt76x0_driver = { 347 .name = KBUILD_MODNAME, 348 .id_table = mt76x0_device_table, 349 .probe = mt76x0u_probe, 350 .disconnect = mt76x0_disconnect, 351 .suspend = mt76x0_suspend, 352 .resume = mt76x0_resume, 353 .reset_resume = mt76x0_resume, 354 .soft_unbind = 1, 355 .disable_hub_initiated_lpm = 1, 356 }; 357 module_usb_driver(mt76x0_driver); 358