xref: /freebsd/sys/contrib/dev/mediatek/mt76/mt7921/init.c (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
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 
13 #if defined(__linux__)
14 static ssize_t mt7921_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 = mt7921_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, mt7921_thermal_temp, 0);
38 
39 static struct attribute *mt7921_hwmon_attrs[] = {
40 	&sensor_dev_attr_temp1_input.dev_attr.attr,
41 	NULL,
42 };
43 ATTRIBUTE_GROUPS(mt7921_hwmon);
44 
45 static int mt7921_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, "mt7921_%s",
55 			      wiphy_name(wiphy));
56 
57 	hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,
58 						       mt7921_hwmon_groups);
59 	if (IS_ERR(hwmon))
60 		return PTR_ERR(hwmon);
61 
62 	return 0;
63 }
64 #endif
65 
66 static void
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 
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 
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 
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 
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 #if !defined(__FreeBSD__) || defined(CONFIG_MT7921_DEBUGFS)
170 	ret = mt7921_init_debugfs(dev);
171 	if (ret) {
172 		dev_err(dev->mt76.dev, "register debugfs failed\n");
173 		return;
174 	}
175 #endif
176 
177 #if defined(__linux__)
178 	ret = mt7921_thermal_init(&dev->phy);
179 	if (ret) {
180 		dev_err(dev->mt76.dev, "thermal init failed\n");
181 		return;
182 	}
183 #endif
184 
185 	/* we support chip reset now */
186 	dev->hw_init_done = true;
187 
188 	mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable);
189 }
190 
191 int mt7921_register_device(struct mt792x_dev *dev)
192 {
193 	struct ieee80211_hw *hw = mt76_hw(dev);
194 	int ret;
195 
196 	dev->phy.dev = dev;
197 	dev->phy.mt76 = &dev->mt76.phy;
198 	dev->mt76.phy.priv = &dev->phy;
199 	dev->mt76.tx_worker.fn = mt792x_tx_worker;
200 
201 	INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
202 	INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
203 	spin_lock_init(&dev->pm.wake.lock);
204 	mutex_init(&dev->pm.mutex);
205 	init_waitqueue_head(&dev->pm.wait);
206 	if (mt76_is_sdio(&dev->mt76))
207 		init_waitqueue_head(&dev->mt76.sdio.wait);
208 	spin_lock_init(&dev->pm.txq_lock);
209 	INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
210 	INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work);
211 	INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work);
212 #if IS_ENABLED(CONFIG_IPV6)
213 	INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work);
214 	skb_queue_head_init(&dev->ipv6_ns_list);
215 #endif
216 	skb_queue_head_init(&dev->phy.scan_event_list);
217 	skb_queue_head_init(&dev->coredump.msg_list);
218 
219 	INIT_WORK(&dev->reset_work, mt7921_mac_reset_work);
220 	INIT_WORK(&dev->init_work, mt7921_init_work);
221 
222 	INIT_WORK(&dev->phy.roc_work, mt7921_roc_work);
223 	timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
224 	init_waitqueue_head(&dev->phy.roc_wait);
225 
226 	dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
227 	dev->pm.stats.last_wake_event = jiffies;
228 	dev->pm.stats.last_doze_event = jiffies;
229 	if (!mt76_is_usb(&dev->mt76)) {
230 		dev->pm.enable_user = true;
231 		dev->pm.enable = true;
232 		dev->pm.ds_enable_user = true;
233 		dev->pm.ds_enable = true;
234 	}
235 
236 	if (!mt76_is_mmio(&dev->mt76))
237 		hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
238 
239 	mt792x_init_acpi_sar(dev);
240 
241 	ret = mt792x_init_wcid(dev);
242 	if (ret)
243 		return ret;
244 
245 	ret = mt792x_init_wiphy(hw);
246 	if (ret)
247 		return ret;
248 
249 	hw->wiphy->reg_notifier = mt7921_regd_notifier;
250 	dev->mphy.sband_2g.sband.ht_cap.cap |=
251 			IEEE80211_HT_CAP_LDPC_CODING |
252 			IEEE80211_HT_CAP_MAX_AMSDU;
253 	dev->mphy.sband_5g.sband.ht_cap.cap |=
254 			IEEE80211_HT_CAP_LDPC_CODING |
255 			IEEE80211_HT_CAP_MAX_AMSDU;
256 	dev->mphy.sband_5g.sband.vht_cap.cap |=
257 			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
258 			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
259 			IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
260 			IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
261 			(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
262 	if (is_mt7922(&dev->mt76))
263 		dev->mphy.sband_5g.sband.vht_cap.cap |=
264 			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
265 			IEEE80211_VHT_CAP_SHORT_GI_160;
266 
267 	dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
268 	dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
269 
270 	queue_work(system_wq, &dev->init_work);
271 
272 	return 0;
273 }
274 EXPORT_SYMBOL_GPL(mt7921_register_device);
275