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