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