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 { USB_DEVICE(0x2357, 0x010b) },
37
38 { USB_DEVICE(0x2357, 0x0105), .driver_info = 1, },
39
40 { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7630, 0xff, 0x2, 0xff)},
41
42 { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7650, 0xff, 0x2, 0xff)},
43 { 0, }
44};
45
46static 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
56
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
73static 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
80static 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
102static 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
120static 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
146static 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
174static 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
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
203out_err:
204 mt76x0u_cleanup(dev);
205 return err;
206}
207
208static 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
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
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
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
278err:
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
287static 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
304static 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
316static 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;
330err:
331 mt76x0u_cleanup(dev);
332 return ret;
333}
334
335MODULE_DEVICE_TABLE(usb, mt76x0_device_table);
336MODULE_FIRMWARE(MT7610E_FIRMWARE);
337MODULE_FIRMWARE(MT7610U_FIRMWARE);
338MODULE_LICENSE("GPL");
339
340static 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};
351module_usb_driver(mt76x0_driver);
352
