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