1
2
3
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
14static struct usb_device_id mt76x0_device_table[] = {
15 { USB_DEVICE(0x148F, 0x7610) },
16 { USB_DEVICE(0x13B1, 0x003E) },
17 { USB_DEVICE(0x0E8D, 0x7610) },
18 { USB_DEVICE(0x7392, 0xa711) },
19 { USB_DEVICE(0x7392, 0xb711) },
20 { USB_DEVICE(0x148f, 0x761a) },
21 { USB_DEVICE(0x148f, 0x760a) },
22 { USB_DEVICE(0x0b05, 0x17d1) },
23 { USB_DEVICE(0x0b05, 0x17db) },
24 { USB_DEVICE(0x0df6, 0x0075) },
25 { USB_DEVICE(0x2019, 0xab31) },
26 { USB_DEVICE(0x2001, 0x3d02) },
27 { USB_DEVICE(0x0586, 0x3425) },
28 { USB_DEVICE(0x07b8, 0x7610) },
29 { USB_DEVICE(0x04bb, 0x0951) },
30 { USB_DEVICE(0x057c, 0x8502) },
31 { USB_DEVICE(0x293c, 0x5702) },
32 { USB_DEVICE(0x20f4, 0x806b) },
33 { USB_DEVICE(0x7392, 0xc711) },
34 { USB_DEVICE(0x0df6, 0x0079) },
35 { USB_DEVICE(0x2357, 0x0123) },
36
37 { USB_DEVICE(0x2357, 0x0105), .driver_info = 1, },
38
39 { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7630, 0xff, 0x2, 0xff)},
40
41 { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7650, 0xff, 0x2, 0xff)},
42 { 0, }
43};
44
45static 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
55
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
72static 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
79static 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
101static 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
119static 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
145static 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
173static 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
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
202out_err:
203 mt76x0u_cleanup(dev);
204 return err;
205}
206
207static 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
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
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
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
277err:
278 usb_set_intfdata(usb_intf, NULL);
279 usb_put_dev(interface_to_usbdev(usb_intf));
280 mt76_free_device(&dev->mt76);
281
282 return ret;
283}
284
285static void mt76x0_disconnect(struct usb_interface *usb_intf)
286{
287 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);
288 bool initialized = test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
289
290 if (!initialized)
291 return;
292
293 ieee80211_unregister_hw(dev->mt76.hw);
294 mt76x0u_cleanup(dev);
295
296 usb_set_intfdata(usb_intf, NULL);
297 usb_put_dev(interface_to_usbdev(usb_intf));
298
299 mt76_free_device(&dev->mt76);
300}
301
302static int __maybe_unused mt76x0_suspend(struct usb_interface *usb_intf,
303 pm_message_t state)
304{
305 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);
306
307 mt76u_stop_rx(&dev->mt76);
308 clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
309 mt76x0_chip_onoff(dev, false, false);
310
311 return 0;
312}
313
314static int __maybe_unused mt76x0_resume(struct usb_interface *usb_intf)
315{
316 struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);
317 int ret;
318
319 ret = mt76u_resume_rx(&dev->mt76);
320 if (ret < 0)
321 goto err;
322
323 ret = mt76x0u_init_hardware(dev, false);
324 if (ret)
325 goto err;
326
327 return 0;
328err:
329 mt76x0u_cleanup(dev);
330 return ret;
331}
332
333MODULE_DEVICE_TABLE(usb, mt76x0_device_table);
334MODULE_FIRMWARE(MT7610E_FIRMWARE);
335MODULE_FIRMWARE(MT7610U_FIRMWARE);
336MODULE_LICENSE("GPL");
337
338static struct usb_driver mt76x0_driver = {
339 .name = KBUILD_MODNAME,
340 .id_table = mt76x0_device_table,
341 .probe = mt76x0u_probe,
342 .disconnect = mt76x0_disconnect,
343 .suspend = mt76x0_suspend,
344 .resume = mt76x0_resume,
345 .reset_resume = mt76x0_resume,
346 .soft_unbind = 1,
347 .disable_hub_initiated_lpm = 1,
348};
349module_usb_driver(mt76x0_driver);
350
