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_update(struct mt792x_dev * dev)61 void mt7925_regd_update(struct mt792x_dev *dev)
62 {
63 struct mt76_dev *mdev = &dev->mt76;
64 struct ieee80211_hw *hw = mdev->hw;
65
66 if (!dev->regd_change)
67 return;
68
69 mt7925_mcu_set_clc(dev, mdev->alpha2, dev->country_ie_env);
70 mt7925_mcu_set_channel_domain(hw->priv);
71 mt7925_set_tx_sar_pwr(hw, NULL);
72 dev->regd_change = false;
73 }
74 EXPORT_SYMBOL_GPL(mt7925_regd_update);
75
76 static void
mt7925_regd_notifier(struct wiphy * wiphy,struct regulatory_request * req)77 mt7925_regd_notifier(struct wiphy *wiphy,
78 struct regulatory_request *req)
79 {
80 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
81 struct mt792x_dev *dev = mt792x_hw_dev(hw);
82 struct mt76_dev *mdev = &dev->mt76;
83 struct mt76_connac_pm *pm = &dev->pm;
84
85 /* allow world regdom at the first boot only */
86 if (!memcmp(req->alpha2, "00", 2) &&
87 mdev->alpha2[0] && mdev->alpha2[1])
88 return;
89
90 /* do not need to update the same country twice */
91 if (!memcmp(req->alpha2, mdev->alpha2, 2) &&
92 dev->country_ie_env == req->country_ie_env)
93 return;
94
95 memcpy(mdev->alpha2, req->alpha2, 2);
96 mdev->region = req->dfs_region;
97 dev->country_ie_env = req->country_ie_env;
98 dev->regd_change = true;
99
100 if (pm->suspended)
101 return;
102
103 dev->regd_in_progress = true;
104 mt792x_mutex_acquire(dev);
105 mt7925_regd_update(dev);
106 mt792x_mutex_release(dev);
107 dev->regd_in_progress = false;
108 wake_up(&dev->wait);
109 }
110
mt7925_mac_init_basic_rates(struct mt792x_dev * dev)111 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev)
112 {
113 int i;
114
115 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) {
116 u16 rate = mt76_rates[i].hw_value;
117 u16 idx = MT792x_BASIC_RATES_TBL + i;
118
119 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) |
120 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0));
121 mt7925_mac_set_fixed_rate_table(dev, idx, rate);
122 }
123 }
124
mt7925_mac_init(struct mt792x_dev * dev)125 int mt7925_mac_init(struct mt792x_dev *dev)
126 {
127 int i;
128
129 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
130 /* enable hardware de-agg */
131 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
132
133 for (i = 0; i < MT792x_WTBL_SIZE; i++)
134 mt7925_mac_wtbl_update(dev, i,
135 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
136 for (i = 0; i < 2; i++)
137 mt792x_mac_init_band(dev, i);
138
139 mt7925_mac_init_basic_rates(dev);
140
141 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2));
142
143 return 0;
144 }
145 EXPORT_SYMBOL_GPL(mt7925_mac_init);
146
__mt7925_init_hardware(struct mt792x_dev * dev)147 static int __mt7925_init_hardware(struct mt792x_dev *dev)
148 {
149 int ret;
150
151 ret = mt792x_mcu_init(dev);
152 if (ret)
153 goto out;
154
155 mt76_eeprom_override(&dev->mphy);
156
157 ret = mt7925_mcu_set_eeprom(dev);
158 if (ret)
159 goto out;
160
161 ret = mt7925_mac_init(dev);
162 if (ret)
163 goto out;
164
165 out:
166 return ret;
167 }
168
mt7925_init_hardware(struct mt792x_dev * dev)169 static int mt7925_init_hardware(struct mt792x_dev *dev)
170 {
171 int ret, i;
172
173 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
174
175 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
176 ret = __mt7925_init_hardware(dev);
177 if (!ret)
178 break;
179
180 mt792x_init_reset(dev);
181 }
182
183 if (i == MT792x_MCU_INIT_RETRY_COUNT) {
184 dev_err(dev->mt76.dev, "hardware init failed\n");
185 return ret;
186 }
187
188 return 0;
189 }
190
mt7925_init_work(struct work_struct * work)191 static void mt7925_init_work(struct work_struct *work)
192 {
193 struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
194 init_work);
195 int ret;
196
197 ret = mt7925_init_hardware(dev);
198 if (ret)
199 return;
200
201 mt76_set_stream_caps(&dev->mphy, true);
202 mt7925_set_stream_he_eht_caps(&dev->phy);
203 mt792x_config_mac_addr_list(dev);
204
205 ret = mt7925_init_mlo_caps(&dev->phy);
206 if (ret) {
207 dev_err(dev->mt76.dev, "MLO init failed\n");
208 return;
209 }
210
211 ret = mt76_register_device(&dev->mt76, true, mt76_rates,
212 ARRAY_SIZE(mt76_rates));
213 if (ret) {
214 dev_err(dev->mt76.dev, "register device failed\n");
215 return;
216 }
217
218 ret = mt7925_init_debugfs(dev);
219 if (ret) {
220 dev_err(dev->mt76.dev, "register debugfs failed\n");
221 return;
222 }
223
224 ret = mt7925_thermal_init(&dev->phy);
225 if (ret) {
226 dev_err(dev->mt76.dev, "thermal init failed\n");
227 return;
228 }
229
230 /* we support chip reset now */
231 dev->hw_init_done = true;
232
233 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable);
234 }
235
mt7925_register_device(struct mt792x_dev * dev)236 int mt7925_register_device(struct mt792x_dev *dev)
237 {
238 struct ieee80211_hw *hw = mt76_hw(dev);
239 int ret;
240
241 dev->phy.dev = dev;
242 dev->phy.mt76 = &dev->mt76.phy;
243 dev->mt76.phy.priv = &dev->phy;
244 dev->mt76.tx_worker.fn = mt792x_tx_worker;
245
246 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
247 INIT_DELAYED_WORK(&dev->mlo_pm_work, mt7925_mlo_pm_work);
248 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
249 spin_lock_init(&dev->pm.wake.lock);
250 mutex_init(&dev->pm.mutex);
251 init_waitqueue_head(&dev->pm.wait);
252 init_waitqueue_head(&dev->wait);
253 spin_lock_init(&dev->pm.txq_lock);
254 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
255 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work);
256 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work);
257 #if IS_ENABLED(CONFIG_IPV6)
258 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work);
259 skb_queue_head_init(&dev->ipv6_ns_list);
260 #endif
261 skb_queue_head_init(&dev->phy.scan_event_list);
262 skb_queue_head_init(&dev->coredump.msg_list);
263
264 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work);
265 INIT_WORK(&dev->init_work, mt7925_init_work);
266
267 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work);
268 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
269 init_waitqueue_head(&dev->phy.roc_wait);
270
271 dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
272 dev->pm.stats.last_wake_event = jiffies;
273 dev->pm.stats.last_doze_event = jiffies;
274 if (!mt76_is_usb(&dev->mt76)) {
275 dev->pm.enable_user = true;
276 dev->pm.enable = true;
277 dev->pm.ds_enable_user = true;
278 dev->pm.ds_enable = true;
279 }
280
281 if (!mt76_is_mmio(&dev->mt76))
282 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
283
284 mt792x_init_acpi_sar(dev);
285
286 ret = mt792x_init_wcid(dev);
287 if (ret)
288 return ret;
289
290 ret = mt792x_init_wiphy(hw);
291 if (ret)
292 return ret;
293
294 hw->wiphy->reg_notifier = mt7925_regd_notifier;
295 dev->mphy.sband_2g.sband.ht_cap.cap |=
296 IEEE80211_HT_CAP_LDPC_CODING |
297 IEEE80211_HT_CAP_MAX_AMSDU;
298 dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
299 IEEE80211_HT_MPDU_DENSITY_2;
300 dev->mphy.sband_5g.sband.ht_cap.cap |=
301 IEEE80211_HT_CAP_LDPC_CODING |
302 IEEE80211_HT_CAP_MAX_AMSDU;
303 dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
304 IEEE80211_HT_MPDU_DENSITY_1;
305 dev->mphy.sband_5g.sband.vht_cap.cap |=
306 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
307 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
308 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
309 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
310 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
311 dev->mphy.sband_5g.sband.vht_cap.cap |=
312 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
313 IEEE80211_VHT_CAP_SHORT_GI_160;
314
315 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
316 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
317
318 queue_work(system_wq, &dev->init_work);
319
320 return 0;
321 }
322 EXPORT_SYMBOL_GPL(mt7925_register_device);
323