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