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 static void
mt7925_regd_notifier(struct wiphy * wiphy,struct regulatory_request * req)63 mt7925_regd_notifier(struct wiphy *wiphy,
64 struct regulatory_request *req)
65 {
66 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
67 struct mt792x_dev *dev = mt792x_hw_dev(hw);
68 struct mt76_dev *mdev = &dev->mt76;
69
70 /* allow world regdom at the first boot only */
71 if (!memcmp(req->alpha2, "00", 2) &&
72 mdev->alpha2[0] && mdev->alpha2[1])
73 return;
74
75 /* do not need to update the same country twice */
76 if (!memcmp(req->alpha2, mdev->alpha2, 2) &&
77 dev->country_ie_env == req->country_ie_env)
78 return;
79
80 memcpy(mdev->alpha2, req->alpha2, 2);
81 mdev->region = req->dfs_region;
82 dev->country_ie_env = req->country_ie_env;
83
84 mt792x_mutex_acquire(dev);
85 mt7925_mcu_set_clc(dev, req->alpha2, req->country_ie_env);
86 mt7925_mcu_set_channel_domain(hw->priv);
87 mt7925_set_tx_sar_pwr(hw, NULL);
88 mt792x_mutex_release(dev);
89 }
90
mt7925_mac_init_basic_rates(struct mt792x_dev * dev)91 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev)
92 {
93 int i;
94
95 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) {
96 u16 rate = mt76_rates[i].hw_value;
97 u16 idx = MT792x_BASIC_RATES_TBL + i;
98
99 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) |
100 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0));
101 mt7925_mac_set_fixed_rate_table(dev, idx, rate);
102 }
103 }
104
mt7925_mac_init(struct mt792x_dev * dev)105 int mt7925_mac_init(struct mt792x_dev *dev)
106 {
107 int i;
108
109 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
110 /* enable hardware de-agg */
111 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
112
113 for (i = 0; i < MT792x_WTBL_SIZE; i++)
114 mt7925_mac_wtbl_update(dev, i,
115 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
116 for (i = 0; i < 2; i++)
117 mt792x_mac_init_band(dev, i);
118
119 mt7925_mac_init_basic_rates(dev);
120
121 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2));
122
123 return 0;
124 }
125 EXPORT_SYMBOL_GPL(mt7925_mac_init);
126
__mt7925_init_hardware(struct mt792x_dev * dev)127 static int __mt7925_init_hardware(struct mt792x_dev *dev)
128 {
129 int ret;
130
131 ret = mt792x_mcu_init(dev);
132 if (ret)
133 goto out;
134
135 mt76_eeprom_override(&dev->mphy);
136
137 ret = mt7925_mcu_set_eeprom(dev);
138 if (ret)
139 goto out;
140
141 ret = mt7925_mac_init(dev);
142 if (ret)
143 goto out;
144
145 out:
146 return ret;
147 }
148
mt7925_init_hardware(struct mt792x_dev * dev)149 static int mt7925_init_hardware(struct mt792x_dev *dev)
150 {
151 int ret, i;
152
153 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
154
155 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
156 ret = __mt7925_init_hardware(dev);
157 if (!ret)
158 break;
159
160 mt792x_init_reset(dev);
161 }
162
163 if (i == MT792x_MCU_INIT_RETRY_COUNT) {
164 dev_err(dev->mt76.dev, "hardware init failed\n");
165 return ret;
166 }
167
168 return 0;
169 }
170
mt7925_init_work(struct work_struct * work)171 static void mt7925_init_work(struct work_struct *work)
172 {
173 struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
174 init_work);
175 int ret;
176
177 ret = mt7925_init_hardware(dev);
178 if (ret)
179 return;
180
181 mt76_set_stream_caps(&dev->mphy, true);
182 mt7925_set_stream_he_eht_caps(&dev->phy);
183
184 ret = mt7925_init_mlo_caps(&dev->phy);
185 if (ret) {
186 dev_err(dev->mt76.dev, "MLO init failed\n");
187 return;
188 }
189
190 ret = mt76_register_device(&dev->mt76, true, mt76_rates,
191 ARRAY_SIZE(mt76_rates));
192 if (ret) {
193 dev_err(dev->mt76.dev, "register device failed\n");
194 return;
195 }
196
197 ret = mt7925_init_debugfs(dev);
198 if (ret) {
199 dev_err(dev->mt76.dev, "register debugfs failed\n");
200 return;
201 }
202
203 ret = mt7925_thermal_init(&dev->phy);
204 if (ret) {
205 dev_err(dev->mt76.dev, "thermal init failed\n");
206 return;
207 }
208
209 ret = mt7925_mcu_set_thermal_protect(dev);
210 if (ret) {
211 dev_err(dev->mt76.dev, "thermal protection enable failed\n");
212 return;
213 }
214
215 /* we support chip reset now */
216 dev->hw_init_done = true;
217
218 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable);
219 }
220
mt7925_register_device(struct mt792x_dev * dev)221 int mt7925_register_device(struct mt792x_dev *dev)
222 {
223 struct ieee80211_hw *hw = mt76_hw(dev);
224 int ret;
225
226 dev->phy.dev = dev;
227 dev->phy.mt76 = &dev->mt76.phy;
228 dev->mt76.phy.priv = &dev->phy;
229 dev->mt76.tx_worker.fn = mt792x_tx_worker;
230
231 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
232 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
233 spin_lock_init(&dev->pm.wake.lock);
234 mutex_init(&dev->pm.mutex);
235 init_waitqueue_head(&dev->pm.wait);
236 spin_lock_init(&dev->pm.txq_lock);
237 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
238 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work);
239 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work);
240 #if IS_ENABLED(CONFIG_IPV6)
241 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work);
242 skb_queue_head_init(&dev->ipv6_ns_list);
243 #endif
244 skb_queue_head_init(&dev->phy.scan_event_list);
245 skb_queue_head_init(&dev->coredump.msg_list);
246
247 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work);
248 INIT_WORK(&dev->init_work, mt7925_init_work);
249
250 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work);
251 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
252 init_waitqueue_head(&dev->phy.roc_wait);
253
254 dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
255 dev->pm.stats.last_wake_event = jiffies;
256 dev->pm.stats.last_doze_event = jiffies;
257 if (!mt76_is_usb(&dev->mt76)) {
258 dev->pm.enable_user = true;
259 dev->pm.enable = true;
260 dev->pm.ds_enable_user = true;
261 dev->pm.ds_enable = true;
262 }
263
264 if (!mt76_is_mmio(&dev->mt76))
265 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
266
267 mt792x_init_acpi_sar(dev);
268
269 ret = mt792x_init_wcid(dev);
270 if (ret)
271 return ret;
272
273 ret = mt792x_init_wiphy(hw);
274 if (ret)
275 return ret;
276
277 hw->wiphy->reg_notifier = mt7925_regd_notifier;
278 dev->mphy.sband_2g.sband.ht_cap.cap |=
279 IEEE80211_HT_CAP_LDPC_CODING |
280 IEEE80211_HT_CAP_MAX_AMSDU;
281 dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
282 IEEE80211_HT_MPDU_DENSITY_2;
283 dev->mphy.sband_5g.sband.ht_cap.cap |=
284 IEEE80211_HT_CAP_LDPC_CODING |
285 IEEE80211_HT_CAP_MAX_AMSDU;
286 dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
287 IEEE80211_HT_MPDU_DENSITY_1;
288 dev->mphy.sband_5g.sband.vht_cap.cap |=
289 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
290 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
291 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
292 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
293 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
294 dev->mphy.sband_5g.sband.vht_cap.cap |=
295 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
296 IEEE80211_VHT_CAP_SHORT_GI_160;
297
298 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
299 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
300
301 queue_work(system_wq, &dev->init_work);
302
303 return 0;
304 }
305 EXPORT_SYMBOL_GPL(mt7925_register_device);
306