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) 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 .tx = mt76x02_tx, 122 .start = mt76x0u_start, 123 .stop = mt76x0u_stop, 124 .add_interface = mt76x02_add_interface, 125 .remove_interface = mt76x02_remove_interface, 126 .config = mt76x0_config, 127 .configure_filter = mt76x02_configure_filter, 128 .bss_info_changed = mt76x02_bss_info_changed, 129 .sta_state = mt76_sta_state, 130 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 131 .set_key = mt76x02_set_key, 132 .conf_tx = mt76x02_conf_tx, 133 .sw_scan_start = mt76_sw_scan, 134 .sw_scan_complete = mt76x02_sw_scan_complete, 135 .ampdu_action = mt76x02_ampdu_action, 136 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update, 137 .set_rts_threshold = mt76x02_set_rts_threshold, 138 .wake_tx_queue = mt76_wake_tx_queue, 139 .get_txpower = mt76_get_txpower, 140 .get_survey = mt76_get_survey, 141 .set_tim = mt76_set_tim, 142 .release_buffered_frames = mt76_release_buffered_frames, 143 .get_antenna = mt76_get_antenna, 144 .set_sar_specs = mt76x0_set_sar_specs, 145 }; 146 147 static int mt76x0u_init_hardware(struct mt76x02_dev *dev, bool reset) 148 { 149 int err; 150 151 mt76x0_chip_onoff(dev, true, reset); 152 153 if (!mt76x02_wait_for_mac(&dev->mt76)) 154 return -ETIMEDOUT; 155 156 err = mt76x0u_mcu_init(dev); 157 if (err < 0) 158 return err; 159 160 mt76x0_init_usb_dma(dev); 161 err = mt76x0_init_hardware(dev); 162 if (err < 0) 163 return err; 164 165 mt76x02u_init_beacon_config(dev); 166 167 mt76_rmw(dev, MT_US_CYC_CFG, MT_US_CYC_CNT, 0x1e); 168 mt76_wr(dev, MT_TXOP_CTRL_CFG, 169 FIELD_PREP(MT_TXOP_TRUN_EN, 0x3f) | 170 FIELD_PREP(MT_TXOP_EXT_CCA_DLY, 0x58)); 171 172 return 0; 173 } 174 175 static int mt76x0u_register_device(struct mt76x02_dev *dev) 176 { 177 struct ieee80211_hw *hw = dev->mt76.hw; 178 struct mt76_usb *usb = &dev->mt76.usb; 179 int err; 180 181 usb->mcu.data = devm_kmalloc(dev->mt76.dev, MCU_RESP_URB_SIZE, 182 GFP_KERNEL); 183 if (!usb->mcu.data) 184 return -ENOMEM; 185 186 err = mt76u_alloc_queues(&dev->mt76); 187 if (err < 0) 188 goto out_err; 189 190 err = mt76x0u_init_hardware(dev, true); 191 if (err < 0) 192 goto out_err; 193 194 /* check hw sg support in order to enable AMSDU */ 195 hw->max_tx_fragments = dev->mt76.usb.sg_en ? MT_TX_SG_MAX_SIZE : 1; 196 err = mt76x0_register_device(dev); 197 if (err < 0) 198 goto out_err; 199 200 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 201 202 return 0; 203 204 out_err: 205 mt76x0u_cleanup(dev); 206 return err; 207 } 208 209 static int mt76x0u_probe(struct usb_interface *usb_intf, 210 const struct usb_device_id *id) 211 { 212 static const struct mt76_driver_ops drv_ops = { 213 .drv_flags = MT_DRV_SW_RX_AIRTIME, 214 .survey_flags = SURVEY_INFO_TIME_TX, 215 .update_survey = mt76x02_update_channel, 216 .tx_prepare_skb = mt76x02u_tx_prepare_skb, 217 .tx_complete_skb = mt76x02u_tx_complete_skb, 218 .tx_status_data = mt76x02_tx_status_data, 219 .rx_skb = mt76x02_queue_rx_skb, 220 .sta_ps = mt76x02_sta_ps, 221 .sta_add = mt76x02_sta_add, 222 .sta_remove = mt76x02_sta_remove, 223 }; 224 struct usb_device *usb_dev = interface_to_usbdev(usb_intf); 225 struct mt76x02_dev *dev; 226 struct mt76_dev *mdev; 227 u32 mac_rev; 228 int ret; 229 230 mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), &mt76x0u_ops, 231 &drv_ops); 232 if (!mdev) 233 return -ENOMEM; 234 235 dev = container_of(mdev, struct mt76x02_dev, mt76); 236 mutex_init(&dev->phy_mutex); 237 238 /* Quirk for Archer T1U */ 239 if (id->driver_info) 240 dev->no_2ghz = true; 241 242 usb_dev = usb_get_dev(usb_dev); 243 usb_reset_device(usb_dev); 244 245 usb_set_intfdata(usb_intf, dev); 246 247 mt76x02u_init_mcu(mdev); 248 ret = mt76u_init(mdev, usb_intf); 249 if (ret) 250 goto err; 251 252 /* Disable the HW, otherwise MCU fail to initialize on hot reboot */ 253 mt76x0_chip_onoff(dev, false, false); 254 255 if (!mt76x02_wait_for_mac(mdev)) { 256 ret = -ETIMEDOUT; 257 goto err; 258 } 259 260 mdev->rev = mt76_rr(dev, MT_ASIC_VERSION); 261 mac_rev = mt76_rr(dev, MT_MAC_CSR0); 262 dev_info(mdev->dev, "ASIC revision: %08x MAC revision: %08x\n", 263 mdev->rev, mac_rev); 264 if (!is_mt76x0(dev)) { 265 ret = -ENODEV; 266 goto err; 267 } 268 269 /* Note: vendor driver skips this check for MT76X0U */ 270 if (!(mt76_rr(dev, MT_EFUSE_CTRL) & MT_EFUSE_CTRL_SEL)) 271 dev_warn(mdev->dev, "Warning: eFUSE not present\n"); 272 273 ret = mt76x0u_register_device(dev); 274 if (ret < 0) 275 goto err; 276 277 return 0; 278 279 err: 280 usb_set_intfdata(usb_intf, NULL); 281 usb_put_dev(interface_to_usbdev(usb_intf)); 282 mt76u_queues_deinit(&dev->mt76); 283 mt76_free_device(&dev->mt76); 284 285 return ret; 286 } 287 288 static void mt76x0_disconnect(struct usb_interface *usb_intf) 289 { 290 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf); 291 bool initialized = test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 292 293 if (!initialized) 294 return; 295 296 ieee80211_unregister_hw(dev->mt76.hw); 297 mt76x0u_cleanup(dev); 298 299 usb_set_intfdata(usb_intf, NULL); 300 usb_put_dev(interface_to_usbdev(usb_intf)); 301 302 mt76_free_device(&dev->mt76); 303 } 304 305 static int __maybe_unused mt76x0_suspend(struct usb_interface *usb_intf, 306 pm_message_t state) 307 { 308 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf); 309 310 mt76u_stop_rx(&dev->mt76); 311 clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); 312 mt76x0_chip_onoff(dev, false, false); 313 314 return 0; 315 } 316 317 static int __maybe_unused mt76x0_resume(struct usb_interface *usb_intf) 318 { 319 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf); 320 int ret; 321 322 ret = mt76u_resume_rx(&dev->mt76); 323 if (ret < 0) 324 goto err; 325 326 ret = mt76x0u_init_hardware(dev, false); 327 if (ret) 328 goto err; 329 330 return 0; 331 err: 332 mt76x0u_cleanup(dev); 333 return ret; 334 } 335 336 MODULE_DEVICE_TABLE(usb, mt76x0_device_table); 337 MODULE_FIRMWARE(MT7610E_FIRMWARE); 338 MODULE_FIRMWARE(MT7610U_FIRMWARE); 339 MODULE_LICENSE("GPL"); 340 341 static struct usb_driver mt76x0_driver = { 342 .name = KBUILD_MODNAME, 343 .id_table = mt76x0_device_table, 344 .probe = mt76x0u_probe, 345 .disconnect = mt76x0_disconnect, 346 .suspend = mt76x0_suspend, 347 .resume = mt76x0_resume, 348 .reset_resume = mt76x0_resume, 349 .soft_unbind = 1, 350 .disable_hub_initiated_lpm = 1, 351 }; 352 module_usb_driver(mt76x0_driver); 353