1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2023 MediaTek Inc. */
3
4 #include <linux/etherdevice.h>
5 #include <linux/hwmon.h>
6 #include <linux/hwmon-sysfs.h>
7 #include <linux/thermal.h>
8 #include <linux/firmware.h>
9 #include "mt7925.h"
10 #include "mac.h"
11 #include "mcu.h"
12
13 #if defined(CONFIG_HWMON)
mt7925_thermal_temp_show(struct device * dev,struct device_attribute * attr,char * buf)14 static ssize_t mt7925_thermal_temp_show(struct device *dev,
15 struct device_attribute *attr,
16 char *buf)
17 {
18 switch (to_sensor_dev_attr(attr)->index) {
19 case 0: {
20 struct mt792x_phy *phy = dev_get_drvdata(dev);
21 struct mt792x_dev *mdev = phy->dev;
22 int temperature;
23
24 mt792x_mutex_acquire(mdev);
25 temperature = mt7925_mcu_get_temperature(phy);
26 mt792x_mutex_release(mdev);
27
28 if (temperature < 0)
29 return temperature;
30 /* display in millidegree Celsius */
31 return sprintf(buf, "%u\n", temperature * 1000);
32 }
33 default:
34 return -EINVAL;
35 }
36 }
37 static SENSOR_DEVICE_ATTR_RO(temp1_input, mt7925_thermal_temp, 0);
38
39 static struct attribute *mt7925_hwmon_attrs[] = {
40 &sensor_dev_attr_temp1_input.dev_attr.attr,
41 NULL,
42 };
43 ATTRIBUTE_GROUPS(mt7925_hwmon);
44
mt7925_thermal_init(struct mt792x_phy * phy)45 static int mt7925_thermal_init(struct mt792x_phy *phy)
46 {
47 struct wiphy *wiphy = phy->mt76->hw->wiphy;
48 struct device *hwmon;
49 const char *name;
50
51 if (!IS_REACHABLE(CONFIG_HWMON))
52 return 0;
53
54 name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7925_%s",
55 wiphy_name(wiphy));
56 if (!name)
57 return -ENOMEM;
58
59 hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,
60 mt7925_hwmon_groups);
61 return PTR_ERR_OR_ZERO(hwmon);
62 }
63 #endif
64
mt7925_regd_be_ctrl(struct mt792x_dev * dev,u8 * alpha2)65 void mt7925_regd_be_ctrl(struct mt792x_dev *dev, u8 *alpha2)
66 {
67 struct mt792x_phy *phy = &dev->phy;
68 struct mt7925_clc_rule_v2 *rule;
69 struct mt7925_clc *clc;
70 bool old = dev->has_eht, new = true;
71 u32 mtcl_conf = mt792x_acpi_get_mtcl_conf(&dev->phy, alpha2);
72 u8 *pos;
73
74 if (mtcl_conf != MT792X_ACPI_MTCL_INVALID &&
75 (((mtcl_conf >> 4) & 0x3) == 0)) {
76 new = false;
77 goto out;
78 }
79
80 if (!phy->clc[MT792x_CLC_BE_CTRL])
81 goto out;
82
83 clc = (struct mt7925_clc *)phy->clc[MT792x_CLC_BE_CTRL];
84 pos = clc->data;
85
86 while (1) {
87 rule = (struct mt7925_clc_rule_v2 *)pos;
88
89 if (rule->alpha2[0] == alpha2[0] &&
90 rule->alpha2[1] == alpha2[1]) {
91 new = false;
92 break;
93 }
94
95 /* Check the last one */
96 if (rule->flag & BIT(0))
97 break;
98
99 pos += sizeof(*rule);
100 }
101
102 out:
103 if (old == new)
104 return;
105
106 dev->has_eht = new;
107 mt7925_set_stream_he_eht_caps(phy);
108 }
109
110 static void
mt7925_regd_channel_update(struct wiphy * wiphy,struct mt792x_dev * dev)111 mt7925_regd_channel_update(struct wiphy *wiphy, struct mt792x_dev *dev)
112 {
113 #define IS_UNII_INVALID(idx, sfreq, efreq, cfreq) \
114 (!(dev->phy.clc_chan_conf & BIT(idx)) && (cfreq) >= (sfreq) && (cfreq) <= (efreq))
115 #define MT7925_UNII_59G_IS_VALID 0x1
116 #define MT7925_UNII_6G_IS_VALID 0x1e
117 struct ieee80211_supported_band *sband;
118 struct mt76_dev *mdev = &dev->mt76;
119 struct ieee80211_channel *ch;
120 u32 mtcl_conf = mt792x_acpi_get_mtcl_conf(&dev->phy, mdev->alpha2);
121 int i;
122
123 if (mtcl_conf != MT792X_ACPI_MTCL_INVALID) {
124 if ((mtcl_conf & 0x3) == 0)
125 dev->phy.clc_chan_conf &= ~MT7925_UNII_59G_IS_VALID;
126 if (((mtcl_conf >> 2) & 0x3) == 0)
127 dev->phy.clc_chan_conf &= ~MT7925_UNII_6G_IS_VALID;
128 }
129
130 sband = wiphy->bands[NL80211_BAND_5GHZ];
131 if (!sband)
132 return;
133
134 for (i = 0; i < sband->n_channels; i++) {
135 ch = &sband->channels[i];
136
137 /* UNII-4 */
138 if (IS_UNII_INVALID(0, 5845, 5925, ch->center_freq))
139 ch->flags |= IEEE80211_CHAN_DISABLED;
140 }
141
142 sband = wiphy->bands[NL80211_BAND_6GHZ];
143 if (!sband)
144 return;
145
146 for (i = 0; i < sband->n_channels; i++) {
147 ch = &sband->channels[i];
148
149 /* UNII-5/6/7/8 */
150 if (IS_UNII_INVALID(1, 5925, 6425, ch->center_freq) ||
151 IS_UNII_INVALID(2, 6425, 6525, ch->center_freq) ||
152 IS_UNII_INVALID(3, 6525, 6875, ch->center_freq) ||
153 IS_UNII_INVALID(4, 6875, 7125, ch->center_freq))
154 ch->flags |= IEEE80211_CHAN_DISABLED;
155 }
156 }
157
mt7925_regd_update(struct mt792x_dev * dev)158 void mt7925_regd_update(struct mt792x_dev *dev)
159 {
160 struct mt76_dev *mdev = &dev->mt76;
161 struct ieee80211_hw *hw = mdev->hw;
162 struct wiphy *wiphy = hw->wiphy;
163
164 if (!dev->regd_change)
165 return;
166
167 mt7925_mcu_set_clc(dev, mdev->alpha2, dev->country_ie_env);
168 mt7925_regd_channel_update(wiphy, dev);
169 mt7925_mcu_set_channel_domain(hw->priv);
170 mt7925_set_tx_sar_pwr(hw, NULL);
171 dev->regd_change = false;
172 }
173 EXPORT_SYMBOL_GPL(mt7925_regd_update);
174
175 static void
mt7925_regd_notifier(struct wiphy * wiphy,struct regulatory_request * req)176 mt7925_regd_notifier(struct wiphy *wiphy,
177 struct regulatory_request *req)
178 {
179 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
180 struct mt792x_dev *dev = mt792x_hw_dev(hw);
181 struct mt76_dev *mdev = &dev->mt76;
182 struct mt76_connac_pm *pm = &dev->pm;
183
184 /* allow world regdom at the first boot only */
185 if (!memcmp(req->alpha2, "00", 2) &&
186 mdev->alpha2[0] && mdev->alpha2[1])
187 return;
188
189 /* do not need to update the same country twice */
190 if (!memcmp(req->alpha2, mdev->alpha2, 2) &&
191 dev->country_ie_env == req->country_ie_env)
192 return;
193
194 memcpy(mdev->alpha2, req->alpha2, 2);
195 mdev->region = req->dfs_region;
196 dev->country_ie_env = req->country_ie_env;
197 dev->regd_change = true;
198
199 if (pm->suspended)
200 return;
201
202 dev->regd_in_progress = true;
203 mt792x_mutex_acquire(dev);
204 mt7925_regd_update(dev);
205 mt792x_mutex_release(dev);
206 dev->regd_in_progress = false;
207 wake_up(&dev->wait);
208 }
209
mt7925_mac_init_basic_rates(struct mt792x_dev * dev)210 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev)
211 {
212 int i;
213
214 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) {
215 u16 rate = mt76_rates[i].hw_value;
216 u16 idx = MT792x_BASIC_RATES_TBL + i;
217
218 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) |
219 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0));
220 mt7925_mac_set_fixed_rate_table(dev, idx, rate);
221 }
222 }
223
mt7925_mac_init(struct mt792x_dev * dev)224 int mt7925_mac_init(struct mt792x_dev *dev)
225 {
226 int i;
227
228 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
229 /* enable hardware de-agg */
230 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
231
232 for (i = 0; i < MT792x_WTBL_SIZE; i++)
233 mt7925_mac_wtbl_update(dev, i,
234 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
235 for (i = 0; i < 2; i++)
236 mt792x_mac_init_band(dev, i);
237
238 mt7925_mac_init_basic_rates(dev);
239
240 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2));
241
242 return 0;
243 }
244 EXPORT_SYMBOL_GPL(mt7925_mac_init);
245
__mt7925_init_hardware(struct mt792x_dev * dev)246 static int __mt7925_init_hardware(struct mt792x_dev *dev)
247 {
248 int ret;
249
250 ret = mt792x_mcu_init(dev);
251 if (ret)
252 goto out;
253
254 mt76_eeprom_override(&dev->mphy);
255
256 ret = mt7925_mcu_set_eeprom(dev);
257 if (ret)
258 goto out;
259
260 ret = mt7925_mac_init(dev);
261 if (ret)
262 goto out;
263
264 out:
265 return ret;
266 }
267
mt7925_init_hardware(struct mt792x_dev * dev)268 static int mt7925_init_hardware(struct mt792x_dev *dev)
269 {
270 int ret, i;
271
272 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
273
274 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
275 ret = __mt7925_init_hardware(dev);
276 if (!ret)
277 break;
278
279 mt792x_init_reset(dev);
280 }
281
282 if (i == MT792x_MCU_INIT_RETRY_COUNT) {
283 dev_err(dev->mt76.dev, "hardware init failed\n");
284 return ret;
285 }
286
287 return 0;
288 }
289
mt7925_init_work(struct work_struct * work)290 static void mt7925_init_work(struct work_struct *work)
291 {
292 struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
293 init_work);
294 int ret;
295
296 ret = mt7925_init_hardware(dev);
297 if (ret)
298 return;
299
300 mt76_set_stream_caps(&dev->mphy, true);
301 mt7925_set_stream_he_eht_caps(&dev->phy);
302 mt792x_config_mac_addr_list(dev);
303
304 ret = mt7925_init_mlo_caps(&dev->phy);
305 if (ret) {
306 dev_err(dev->mt76.dev, "MLO init failed\n");
307 return;
308 }
309
310 ret = mt76_register_device(&dev->mt76, true, mt76_rates,
311 ARRAY_SIZE(mt76_rates));
312 if (ret) {
313 dev_err(dev->mt76.dev, "register device failed\n");
314 return;
315 }
316
317 #if !defined(__FreeBSD__) || defined(CONFIG_MT7925_DEBUGFS)
318 ret = mt7925_init_debugfs(dev);
319 if (ret) {
320 dev_err(dev->mt76.dev, "register debugfs failed\n");
321 return;
322 }
323 #endif
324
325 #if defined(CONFIG_HWMON)
326 ret = mt7925_thermal_init(&dev->phy);
327 if (ret) {
328 dev_err(dev->mt76.dev, "thermal init failed\n");
329 return;
330 }
331 #endif
332
333 ret = mt7925_mcu_set_thermal_protect(dev);
334 if (ret) {
335 dev_err(dev->mt76.dev, "thermal protection enable failed\n");
336 return;
337 }
338
339 /* we support chip reset now */
340 dev->hw_init_done = true;
341
342 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable);
343 }
344
mt7925_register_device(struct mt792x_dev * dev)345 int mt7925_register_device(struct mt792x_dev *dev)
346 {
347 struct ieee80211_hw *hw = mt76_hw(dev);
348 int ret;
349
350 dev->phy.dev = dev;
351 dev->phy.mt76 = &dev->mt76.phy;
352 dev->mt76.phy.priv = &dev->phy;
353 dev->mt76.tx_worker.fn = mt792x_tx_worker;
354
355 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
356 INIT_DELAYED_WORK(&dev->mlo_pm_work, mt7925_mlo_pm_work);
357 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
358 spin_lock_init(&dev->pm.wake.lock);
359 mutex_init(&dev->pm.mutex);
360 init_waitqueue_head(&dev->pm.wait);
361 init_waitqueue_head(&dev->wait);
362 spin_lock_init(&dev->pm.txq_lock);
363 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
364 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work);
365 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work);
366 #if IS_ENABLED(CONFIG_IPV6)
367 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work);
368 skb_queue_head_init(&dev->ipv6_ns_list);
369 #endif
370 skb_queue_head_init(&dev->phy.scan_event_list);
371 skb_queue_head_init(&dev->coredump.msg_list);
372
373 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work);
374 INIT_WORK(&dev->init_work, mt7925_init_work);
375
376 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work);
377 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
378 init_waitqueue_head(&dev->phy.roc_wait);
379
380 dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
381 dev->pm.stats.last_wake_event = jiffies;
382 dev->pm.stats.last_doze_event = jiffies;
383 if (!mt76_is_usb(&dev->mt76)) {
384 dev->pm.enable_user = true;
385 dev->pm.enable = true;
386 dev->pm.ds_enable_user = true;
387 dev->pm.ds_enable = true;
388 }
389
390 if (!mt76_is_mmio(&dev->mt76))
391 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
392
393 mt792x_init_acpi_sar(dev);
394
395 ret = mt792x_init_wcid(dev);
396 if (ret)
397 return ret;
398
399 ret = mt792x_init_wiphy(hw);
400 if (ret)
401 return ret;
402
403 hw->wiphy->reg_notifier = mt7925_regd_notifier;
404 dev->mphy.sband_2g.sband.ht_cap.cap |=
405 IEEE80211_HT_CAP_LDPC_CODING |
406 IEEE80211_HT_CAP_MAX_AMSDU;
407 dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
408 IEEE80211_HT_MPDU_DENSITY_2;
409 dev->mphy.sband_5g.sband.ht_cap.cap |=
410 IEEE80211_HT_CAP_LDPC_CODING |
411 IEEE80211_HT_CAP_MAX_AMSDU;
412 dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
413 IEEE80211_HT_MPDU_DENSITY_1;
414 dev->mphy.sband_5g.sband.vht_cap.cap |=
415 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
416 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
417 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
418 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
419 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
420 dev->mphy.sband_5g.sband.vht_cap.cap |=
421 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
422 IEEE80211_VHT_CAP_SHORT_GI_160;
423
424 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
425 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
426
427 queue_work(system_wq, &dev->init_work);
428
429 return 0;
430 }
431 EXPORT_SYMBOL_GPL(mt7925_register_device);
432