1 // SPDX-License-Identifier: BSD-3-Clause-Clear
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 "regd.h"
11 #include "mac.h"
12 #include "mcu.h"
13
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
mt7925_mac_init_basic_rates(struct mt792x_dev * dev)64 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev)
65 {
66 int i;
67
68 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) {
69 u16 rate = mt76_rates[i].hw_value;
70 u16 idx = MT792x_BASIC_RATES_TBL + i;
71
72 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) |
73 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0));
74 mt7925_mac_set_fixed_rate_table(dev, idx, rate);
75 }
76 }
77
mt7925_mac_init(struct mt792x_dev * dev)78 int mt7925_mac_init(struct mt792x_dev *dev)
79 {
80 int i;
81
82 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
83 /* enable hardware de-agg */
84 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
85
86 for (i = 0; i < MT792x_WTBL_SIZE; i++)
87 mt7925_mac_wtbl_update(dev, i,
88 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
89 for (i = 0; i < 2; i++)
90 mt792x_mac_init_band(dev, i);
91
92 mt7925_mac_init_basic_rates(dev);
93
94 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2));
95
96 return 0;
97 }
98 EXPORT_SYMBOL_GPL(mt7925_mac_init);
99
__mt7925_init_hardware(struct mt792x_dev * dev)100 static int __mt7925_init_hardware(struct mt792x_dev *dev)
101 {
102 int ret;
103
104 ret = mt792x_mcu_init(dev);
105 if (ret)
106 goto out;
107
108 ret = mt76_eeprom_override(&dev->mphy);
109 if (ret)
110 goto out;
111
112 ret = mt7925_mcu_set_eeprom(dev);
113 if (ret)
114 goto out;
115
116 ret = mt7925_mac_init(dev);
117 if (ret)
118 goto out;
119
120 if (is_mt7927(&dev->mt76)) {
121 ret = mt7925_mcu_set_dbdc(&dev->mphy, true);
122 if (ret) {
123 dev_warn(dev->mt76.dev,
124 "MT7927 DBDC enable failed: %d\n", ret);
125 ret = 0;
126 }
127 }
128
129 out:
130 return ret;
131 }
132
mt7925_init_hardware(struct mt792x_dev * dev)133 static int mt7925_init_hardware(struct mt792x_dev *dev)
134 {
135 int ret, i;
136
137 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
138
139 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
140 if (atomic_read(&dev->mt76.bus_hung)) {
141 ret = -EIO;
142 break;
143 }
144
145 ret = __mt7925_init_hardware(dev);
146 if (!ret)
147 break;
148
149 if (atomic_read(&dev->mt76.bus_hung))
150 break;
151
152 mt792x_init_reset(dev);
153 }
154
155 if (i == MT792x_MCU_INIT_RETRY_COUNT) {
156 dev_err(dev->mt76.dev, "hardware init failed\n");
157 return ret;
158 }
159
160 return 0;
161 }
162
mt7925_init_nan_cap(struct mt76_dev * mdev)163 static int mt7925_init_nan_cap(struct mt76_dev *mdev)
164 {
165 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
166 const struct ieee80211_sta_he_cap *he_cap;
167 struct ieee80211_supported_band *sband;
168 struct wiphy *wiphy = mdev->hw->wiphy;
169
170 if (!(dev->fw_features & MT792x_FW_CAP_NAN))
171 return 0;
172
173 sband = wiphy->bands[NL80211_BAND_2GHZ];
174 if (sband)
175 wiphy->nan_capa.phy.ht = sband->ht_cap;
176
177 sband = wiphy->bands[NL80211_BAND_5GHZ];
178 if (sband)
179 wiphy->nan_capa.phy.vht = sband->vht_cap;
180
181 sband = wiphy->bands[NL80211_BAND_2GHZ];
182 he_cap = sband ? ieee80211_get_he_iftype_cap(sband, NL80211_IFTYPE_NAN)
183 : NULL;
184 if (he_cap)
185 wiphy->nan_capa.phy.he = *he_cap;
186
187 return 0;
188 }
189
mt7925_init_work(struct work_struct * work)190 static void mt7925_init_work(struct work_struct *work)
191 {
192 struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
193 init_work);
194 int ret;
195
196 ret = mt7925_init_hardware(dev);
197 if (ret)
198 return;
199
200 mt76_set_stream_caps(&dev->mphy, true);
201 mt7925_set_stream_he_eht_caps(&dev->phy);
202 mt792x_config_mac_addr_list(dev);
203
204 ret = mt7925_init_mlo_caps(&dev->phy);
205 if (ret) {
206 dev_err(dev->mt76.dev, "MLO init failed\n");
207 return;
208 }
209
210 dev->mt76.init_wiphy = mt7925_init_nan_cap;
211
212 ret = mt76_register_device(&dev->mt76, true, mt76_rates,
213 ARRAY_SIZE(mt76_rates));
214 if (ret) {
215 dev_err(dev->mt76.dev, "register device failed\n");
216 return;
217 }
218
219 ret = mt7925_init_debugfs(dev);
220 if (ret) {
221 dev_err(dev->mt76.dev, "register debugfs failed\n");
222 return;
223 }
224
225 ret = mt7925_thermal_init(&dev->phy);
226 if (ret) {
227 dev_err(dev->mt76.dev, "thermal init failed\n");
228 return;
229 }
230
231 ret = mt7925_mcu_set_thermal_protect(dev);
232 if (ret) {
233 dev_err(dev->mt76.dev, "thermal protection enable failed\n");
234 return;
235 }
236
237 /* we support chip reset now */
238 dev->hw_init_done = true;
239
240 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable);
241 }
242
mt7925_register_device(struct mt792x_dev * dev)243 int mt7925_register_device(struct mt792x_dev *dev)
244 {
245 struct ieee80211_hw *hw = mt76_hw(dev);
246 int ret;
247
248 dev->phy.dev = dev;
249 dev->phy.mt76 = &dev->mt76.phy;
250 dev->mt76.phy.priv = &dev->phy;
251 dev->mt76.tx_worker.fn = mt792x_tx_worker;
252
253 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
254 INIT_DELAYED_WORK(&dev->mlo_pm_work, mt7925_mlo_pm_work);
255 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
256 spin_lock_init(&dev->pm.wake.lock);
257 mutex_init(&dev->pm.mutex);
258 init_waitqueue_head(&dev->pm.wait);
259 init_waitqueue_head(&dev->wait);
260 spin_lock_init(&dev->pm.txq_lock);
261 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
262 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work);
263 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work);
264 #if IS_ENABLED(CONFIG_IPV6)
265 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work);
266 skb_queue_head_init(&dev->ipv6_ns_list);
267 #endif
268 skb_queue_head_init(&dev->phy.scan_event_list);
269 skb_queue_head_init(&dev->coredump.msg_list);
270
271 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work);
272 INIT_WORK(&dev->init_work, mt7925_init_work);
273
274 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work);
275 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
276 init_waitqueue_head(&dev->phy.roc_wait);
277
278 dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
279 dev->pm.stats.last_wake_event = jiffies;
280 dev->pm.stats.last_doze_event = jiffies;
281 /* MT7927: runtime PM crashes BT firmware on the shared CONNINFRA domain */
282 if (!mt76_is_usb(&dev->mt76) && !is_mt7927(&dev->mt76)) {
283 dev->pm.enable_user = true;
284 dev->pm.enable = true;
285 dev->pm.ds_enable_user = true;
286 dev->pm.ds_enable = true;
287 }
288
289 if (!mt76_is_mmio(&dev->mt76))
290 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
291
292 mt792x_init_acpi_sar(dev);
293
294 ret = mt792x_init_wcid(dev);
295 if (ret)
296 return ret;
297
298 ret = mt792x_init_wiphy(hw);
299 if (ret)
300 return ret;
301
302 hw->wiphy->reg_notifier = mt7925_regd_notifier;
303 dev->mphy.sband_2g.sband.ht_cap.cap |=
304 IEEE80211_HT_CAP_LDPC_CODING |
305 IEEE80211_HT_CAP_MAX_AMSDU;
306 dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
307 IEEE80211_HT_MPDU_DENSITY_2;
308 dev->mphy.sband_5g.sband.ht_cap.cap |=
309 IEEE80211_HT_CAP_LDPC_CODING |
310 IEEE80211_HT_CAP_MAX_AMSDU;
311 dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
312 IEEE80211_HT_MPDU_DENSITY_1;
313 dev->mphy.sband_5g.sband.vht_cap.cap |=
314 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
315 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
316 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
317 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
318 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
319 dev->mphy.sband_5g.sband.vht_cap.cap |=
320 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
321 IEEE80211_VHT_CAP_SHORT_GI_160;
322
323 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
324 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
325
326 queue_work(system_percpu_wq, &dev->init_work);
327
328 return 0;
329 }
330 EXPORT_SYMBOL_GPL(mt7925_register_device);
331