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