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 */ 36 /* TP-LINK Archer T1U */ 37 { USB_DEVICE(0x2357, 0x0105), .driver_info = 1, }, 38 /* MT7630U */ 39 { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7630, 0xff, 0x2, 0xff)}, 40 /* MT7650U */ 41 { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7650, 0xff, 0x2, 0xff)}, 42 { 0, } 43 }; 44 45 static void mt76x0_init_usb_dma(struct mt76x02_dev *dev) 46 { 47 u32 val; 48 49 val = mt76_rr(dev, MT_USB_DMA_CFG); 50 51 val |= MT_USB_DMA_CFG_RX_BULK_EN | 52 MT_USB_DMA_CFG_TX_BULK_EN; 53 54 /* disable AGGR_BULK_RX in order to receive one 55 * frame in each rx urb and avoid copies 56 */ 57 val &= ~MT_USB_DMA_CFG_RX_BULK_AGG_EN; 58 mt76_wr(dev, MT_USB_DMA_CFG, val); 59 60 val = mt76_rr(dev, MT_COM_REG0); 61 if (val & 1) 62 dev_dbg(dev->mt76.dev, "MCU not ready\n"); 63 64 val = mt76_rr(dev, MT_USB_DMA_CFG); 65 66 val |= MT_USB_DMA_CFG_RX_DROP_OR_PAD; 67 mt76_wr(dev, MT_USB_DMA_CFG, val); 68 val &= ~MT_USB_DMA_CFG_RX_DROP_OR_PAD; 69 mt76_wr(dev, MT_USB_DMA_CFG, val); 70 } 71 72 static void mt76x0u_cleanup(struct mt76x02_dev *dev) 73 { 74 clear_bit(MT76_STATE_INITIALIZED, &dev->mt76.state); 75 mt76x0_chip_onoff(dev, false, false); 76 mt76u_queues_deinit(&dev->mt76); 77 } 78 79 static void mt76x0u_stop(struct ieee80211_hw *hw) 80 { 81 struct mt76x02_dev *dev = hw->priv; 82 83 clear_bit(MT76_STATE_RUNNING, &dev->mt76.state); 84 cancel_delayed_work_sync(&dev->cal_work); 85 cancel_delayed_work_sync(&dev->mt76.mac_work); 86 mt76u_stop_tx(&dev->mt76); 87 mt76x02u_exit_beacon_config(dev); 88 89 if (test_bit(MT76_REMOVED, &dev->mt76.state)) 90 return; 91 92 if (!mt76_poll(dev, MT_USB_DMA_CFG, MT_USB_DMA_CFG_TX_BUSY, 0, 1000)) 93 dev_warn(dev->mt76.dev, "TX DMA did not stop\n"); 94 95 mt76x0_mac_stop(dev); 96 97 if (!mt76_poll(dev, MT_USB_DMA_CFG, MT_USB_DMA_CFG_RX_BUSY, 0, 1000)) 98 dev_warn(dev->mt76.dev, "RX DMA did not stop\n"); 99 } 100 101 static int mt76x0u_start(struct ieee80211_hw *hw) 102 { 103 struct mt76x02_dev *dev = hw->priv; 104 int ret; 105 106 ret = mt76x02u_mac_start(dev); 107 if (ret) 108 return ret; 109 110 mt76x0_phy_calibrate(dev, true); 111 ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mt76.mac_work, 112 MT_MAC_WORK_INTERVAL); 113 ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work, 114 MT_CALIBRATE_INTERVAL); 115 set_bit(MT76_STATE_RUNNING, &dev->mt76.state); 116 return 0; 117 } 118 119 static const struct ieee80211_ops mt76x0u_ops = { 120 .tx = mt76x02_tx, 121 .start = mt76x0u_start, 122 .stop = mt76x0u_stop, 123 .add_interface = mt76x02_add_interface, 124 .remove_interface = mt76x02_remove_interface, 125 .config = mt76x0_config, 126 .configure_filter = mt76x02_configure_filter, 127 .bss_info_changed = mt76x02_bss_info_changed, 128 .sta_state = mt76_sta_state, 129 .set_key = mt76x02_set_key, 130 .conf_tx = mt76x02_conf_tx, 131 .sw_scan_start = mt76_sw_scan, 132 .sw_scan_complete = mt76x02_sw_scan_complete, 133 .ampdu_action = mt76x02_ampdu_action, 134 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update, 135 .set_rts_threshold = mt76x02_set_rts_threshold, 136 .wake_tx_queue = mt76_wake_tx_queue, 137 .get_txpower = mt76_get_txpower, 138 .get_survey = mt76_get_survey, 139 .set_tim = mt76_set_tim, 140 .release_buffered_frames = mt76_release_buffered_frames, 141 .get_antenna = mt76_get_antenna, 142 }; 143 144 static int mt76x0u_init_hardware(struct mt76x02_dev *dev, bool reset) 145 { 146 int err; 147 148 mt76x0_chip_onoff(dev, true, reset); 149 150 if (!mt76x02_wait_for_mac(&dev->mt76)) 151 return -ETIMEDOUT; 152 153 err = mt76x0u_mcu_init(dev); 154 if (err < 0) 155 return err; 156 157 mt76x0_init_usb_dma(dev); 158 err = mt76x0_init_hardware(dev); 159 if (err < 0) 160 return err; 161 162 mt76x02u_init_beacon_config(dev); 163 164 mt76_rmw(dev, MT_US_CYC_CFG, MT_US_CYC_CNT, 0x1e); 165 mt76_wr(dev, MT_TXOP_CTRL_CFG, 166 FIELD_PREP(MT_TXOP_TRUN_EN, 0x3f) | 167 FIELD_PREP(MT_TXOP_EXT_CCA_DLY, 0x58)); 168 169 return 0; 170 } 171 172 static int mt76x0u_register_device(struct mt76x02_dev *dev) 173 { 174 struct ieee80211_hw *hw = dev->mt76.hw; 175 int err; 176 177 err = mt76u_alloc_queues(&dev->mt76); 178 if (err < 0) 179 goto out_err; 180 181 err = mt76x0u_init_hardware(dev, true); 182 if (err < 0) 183 goto out_err; 184 185 err = mt76x0_register_device(dev); 186 if (err < 0) 187 goto out_err; 188 189 /* check hw sg support in order to enable AMSDU */ 190 if (dev->mt76.usb.sg_en) 191 hw->max_tx_fragments = MT_TX_SG_MAX_SIZE; 192 else 193 hw->max_tx_fragments = 1; 194 195 set_bit(MT76_STATE_INITIALIZED, &dev->mt76.state); 196 197 return 0; 198 199 out_err: 200 mt76x0u_cleanup(dev); 201 return err; 202 } 203 204 static int mt76x0u_probe(struct usb_interface *usb_intf, 205 const struct usb_device_id *id) 206 { 207 static const struct mt76_driver_ops drv_ops = { 208 .drv_flags = MT_DRV_SW_RX_AIRTIME, 209 .survey_flags = SURVEY_INFO_TIME_TX, 210 .update_survey = mt76x02_update_channel, 211 .tx_prepare_skb = mt76x02u_tx_prepare_skb, 212 .tx_complete_skb = mt76x02u_tx_complete_skb, 213 .tx_status_data = mt76x02_tx_status_data, 214 .rx_skb = mt76x02_queue_rx_skb, 215 .sta_ps = mt76x02_sta_ps, 216 .sta_add = mt76x02_sta_add, 217 .sta_remove = mt76x02_sta_remove, 218 }; 219 struct usb_device *usb_dev = interface_to_usbdev(usb_intf); 220 struct mt76x02_dev *dev; 221 struct mt76_dev *mdev; 222 u32 mac_rev; 223 int ret; 224 225 mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), &mt76x0u_ops, 226 &drv_ops); 227 if (!mdev) 228 return -ENOMEM; 229 230 dev = container_of(mdev, struct mt76x02_dev, mt76); 231 mutex_init(&dev->phy_mutex); 232 233 /* Quirk for Archer T1U */ 234 if (id->driver_info) 235 dev->no_2ghz = true; 236 237 usb_dev = usb_get_dev(usb_dev); 238 usb_reset_device(usb_dev); 239 240 usb_set_intfdata(usb_intf, dev); 241 242 mt76x02u_init_mcu(mdev); 243 ret = mt76u_init(mdev, usb_intf); 244 if (ret) 245 goto err; 246 247 /* Disable the HW, otherwise MCU fail to initialize on hot reboot */ 248 mt76x0_chip_onoff(dev, false, false); 249 250 if (!mt76x02_wait_for_mac(mdev)) { 251 ret = -ETIMEDOUT; 252 goto err; 253 } 254 255 mdev->rev = mt76_rr(dev, MT_ASIC_VERSION); 256 mac_rev = mt76_rr(dev, MT_MAC_CSR0); 257 dev_info(mdev->dev, "ASIC revision: %08x MAC revision: %08x\n", 258 mdev->rev, mac_rev); 259 if (!is_mt76x0(dev)) { 260 ret = -ENODEV; 261 goto err; 262 } 263 264 /* Note: vendor driver skips this check for MT76X0U */ 265 if (!(mt76_rr(dev, MT_EFUSE_CTRL) & MT_EFUSE_CTRL_SEL)) 266 dev_warn(mdev->dev, "Warning: eFUSE not present\n"); 267 268 ret = mt76x0u_register_device(dev); 269 if (ret < 0) 270 goto err; 271 272 return 0; 273 274 err: 275 usb_set_intfdata(usb_intf, NULL); 276 usb_put_dev(interface_to_usbdev(usb_intf)); 277 mt76u_deinit(&dev->mt76); 278 279 ieee80211_free_hw(mdev->hw); 280 return ret; 281 } 282 283 static void mt76x0_disconnect(struct usb_interface *usb_intf) 284 { 285 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf); 286 bool initialized = test_bit(MT76_STATE_INITIALIZED, &dev->mt76.state); 287 288 if (!initialized) 289 return; 290 291 ieee80211_unregister_hw(dev->mt76.hw); 292 mt76x0u_cleanup(dev); 293 294 usb_set_intfdata(usb_intf, NULL); 295 usb_put_dev(interface_to_usbdev(usb_intf)); 296 297 mt76u_deinit(&dev->mt76); 298 ieee80211_free_hw(dev->mt76.hw); 299 } 300 301 static int __maybe_unused mt76x0_suspend(struct usb_interface *usb_intf, 302 pm_message_t state) 303 { 304 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf); 305 306 mt76u_stop_rx(&dev->mt76); 307 clear_bit(MT76_STATE_MCU_RUNNING, &dev->mt76.state); 308 mt76x0_chip_onoff(dev, false, false); 309 310 return 0; 311 } 312 313 static int __maybe_unused mt76x0_resume(struct usb_interface *usb_intf) 314 { 315 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf); 316 int ret; 317 318 ret = mt76u_resume_rx(&dev->mt76); 319 if (ret < 0) 320 goto err; 321 322 ret = mt76x0u_init_hardware(dev, false); 323 if (ret) 324 goto err; 325 326 return 0; 327 err: 328 mt76x0u_cleanup(dev); 329 return ret; 330 } 331 332 MODULE_DEVICE_TABLE(usb, mt76x0_device_table); 333 MODULE_FIRMWARE(MT7610E_FIRMWARE); 334 MODULE_FIRMWARE(MT7610U_FIRMWARE); 335 MODULE_LICENSE("GPL"); 336 337 static struct usb_driver mt76x0_driver = { 338 .name = KBUILD_MODNAME, 339 .id_table = mt76x0_device_table, 340 .probe = mt76x0u_probe, 341 .disconnect = mt76x0_disconnect, 342 .suspend = mt76x0_suspend, 343 .resume = mt76x0_resume, 344 .reset_resume = mt76x0_resume, 345 .soft_unbind = 1, 346 .disable_hub_initiated_lpm = 1, 347 }; 348 module_usb_driver(mt76x0_driver); 349