1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 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 "mt7921.h"
10 #include "../mt76_connac2_mac.h"
11 #include "mcu.h"
12
mt7921_thermal_temp_show(struct device * dev,struct device_attribute * attr,char * buf)13 static ssize_t mt7921_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 = mt7921_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, mt7921_thermal_temp, 0);
37
38 static struct attribute *mt7921_hwmon_attrs[] = {
39 &sensor_dev_attr_temp1_input.dev_attr.attr,
40 NULL,
41 };
42 ATTRIBUTE_GROUPS(mt7921_hwmon);
43
mt7921_thermal_init(struct mt792x_phy * phy)44 static int mt7921_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, "mt7921_%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 mt7921_hwmon_groups);
60 if (IS_ERR(hwmon))
61 return PTR_ERR(hwmon);
62
63 return 0;
64 }
65
66 static void
mt7921_regd_notifier(struct wiphy * wiphy,struct regulatory_request * request)67 mt7921_regd_notifier(struct wiphy *wiphy,
68 struct regulatory_request *request)
69 {
70 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
71 struct mt792x_dev *dev = mt792x_hw_dev(hw);
72
73 memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));
74 dev->mt76.region = request->dfs_region;
75 dev->country_ie_env = request->country_ie_env;
76
77 mt792x_mutex_acquire(dev);
78 mt7921_mcu_set_clc(dev, request->alpha2, request->country_ie_env);
79 mt76_connac_mcu_set_channel_domain(hw->priv);
80 mt7921_set_tx_sar_pwr(hw, NULL);
81 mt792x_mutex_release(dev);
82 }
83
mt7921_mac_init(struct mt792x_dev * dev)84 int mt7921_mac_init(struct mt792x_dev *dev)
85 {
86 int i;
87
88 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
89 /* enable hardware de-agg */
90 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
91 /* enable hardware rx header translation */
92 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN);
93
94 for (i = 0; i < MT792x_WTBL_SIZE; i++)
95 mt7921_mac_wtbl_update(dev, i,
96 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
97 for (i = 0; i < 2; i++)
98 mt792x_mac_init_band(dev, i);
99
100 return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0);
101 }
102 EXPORT_SYMBOL_GPL(mt7921_mac_init);
103
__mt7921_init_hardware(struct mt792x_dev * dev)104 static int __mt7921_init_hardware(struct mt792x_dev *dev)
105 {
106 int ret;
107
108 /* force firmware operation mode into normal state,
109 * which should be set before firmware download stage.
110 */
111 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
112 ret = mt792x_mcu_init(dev);
113 if (ret)
114 goto out;
115
116 mt76_eeprom_override(&dev->mphy);
117
118 ret = mt7921_mcu_set_eeprom(dev);
119 if (ret)
120 goto out;
121
122 ret = mt7921_mac_init(dev);
123 out:
124 return ret;
125 }
126
mt7921_init_hardware(struct mt792x_dev * dev)127 static int mt7921_init_hardware(struct mt792x_dev *dev)
128 {
129 int ret, i;
130
131 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
132
133 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
134 ret = __mt7921_init_hardware(dev);
135 if (!ret)
136 break;
137
138 mt792x_init_reset(dev);
139 }
140
141 if (i == MT792x_MCU_INIT_RETRY_COUNT) {
142 dev_err(dev->mt76.dev, "hardware init failed\n");
143 return ret;
144 }
145
146 return 0;
147 }
148
mt7921_init_work(struct work_struct * work)149 static void mt7921_init_work(struct work_struct *work)
150 {
151 struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
152 init_work);
153 int ret;
154
155 ret = mt7921_init_hardware(dev);
156 if (ret)
157 return;
158
159 mt76_set_stream_caps(&dev->mphy, true);
160 mt7921_set_stream_he_caps(&dev->phy);
161
162 ret = mt76_register_device(&dev->mt76, true, mt76_rates,
163 ARRAY_SIZE(mt76_rates));
164 if (ret) {
165 dev_err(dev->mt76.dev, "register device failed\n");
166 return;
167 }
168
169 ret = mt7921_init_debugfs(dev);
170 if (ret) {
171 dev_err(dev->mt76.dev, "register debugfs failed\n");
172 return;
173 }
174
175 ret = mt7921_thermal_init(&dev->phy);
176 if (ret) {
177 dev_err(dev->mt76.dev, "thermal init failed\n");
178 return;
179 }
180
181 /* we support chip reset now */
182 dev->hw_init_done = true;
183
184 mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable);
185 }
186
mt7921_register_device(struct mt792x_dev * dev)187 int mt7921_register_device(struct mt792x_dev *dev)
188 {
189 struct ieee80211_hw *hw = mt76_hw(dev);
190 int ret;
191
192 dev->phy.dev = dev;
193 dev->phy.mt76 = &dev->mt76.phy;
194 dev->mt76.phy.priv = &dev->phy;
195 dev->mt76.tx_worker.fn = mt792x_tx_worker;
196
197 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
198 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
199 spin_lock_init(&dev->pm.wake.lock);
200 mutex_init(&dev->pm.mutex);
201 init_waitqueue_head(&dev->pm.wait);
202 if (mt76_is_sdio(&dev->mt76))
203 init_waitqueue_head(&dev->mt76.sdio.wait);
204 spin_lock_init(&dev->pm.txq_lock);
205 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
206 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work);
207 INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work);
208 #if IS_ENABLED(CONFIG_IPV6)
209 INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work);
210 skb_queue_head_init(&dev->ipv6_ns_list);
211 #endif
212 skb_queue_head_init(&dev->phy.scan_event_list);
213 skb_queue_head_init(&dev->coredump.msg_list);
214
215 INIT_WORK(&dev->reset_work, mt7921_mac_reset_work);
216 INIT_WORK(&dev->init_work, mt7921_init_work);
217
218 INIT_WORK(&dev->phy.roc_work, mt7921_roc_work);
219 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
220 init_waitqueue_head(&dev->phy.roc_wait);
221
222 dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
223 dev->pm.stats.last_wake_event = jiffies;
224 dev->pm.stats.last_doze_event = jiffies;
225 if (!mt76_is_usb(&dev->mt76)) {
226 dev->pm.enable_user = true;
227 dev->pm.enable = true;
228 dev->pm.ds_enable_user = true;
229 dev->pm.ds_enable = true;
230 }
231
232 if (!mt76_is_mmio(&dev->mt76))
233 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
234
235 mt792x_init_acpi_sar(dev);
236
237 ret = mt792x_init_wcid(dev);
238 if (ret)
239 return ret;
240
241 ret = mt792x_init_wiphy(hw);
242 if (ret)
243 return ret;
244
245 hw->wiphy->reg_notifier = mt7921_regd_notifier;
246 dev->mphy.sband_2g.sband.ht_cap.cap |=
247 IEEE80211_HT_CAP_LDPC_CODING |
248 IEEE80211_HT_CAP_MAX_AMSDU;
249 dev->mphy.sband_5g.sband.ht_cap.cap |=
250 IEEE80211_HT_CAP_LDPC_CODING |
251 IEEE80211_HT_CAP_MAX_AMSDU;
252 dev->mphy.sband_5g.sband.vht_cap.cap |=
253 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
254 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
255 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
256 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
257 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
258 if (is_mt7922(&dev->mt76))
259 dev->mphy.sband_5g.sband.vht_cap.cap |=
260 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
261 IEEE80211_VHT_CAP_SHORT_GI_160;
262
263 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
264 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
265
266 queue_work(system_wq, &dev->init_work);
267
268 return 0;
269 }
270 EXPORT_SYMBOL_GPL(mt7921_register_device);
271