1// SPDX-License-Identifier: ISC
  2/* Copyright (C) 2023 MediaTek Inc. */
  3
  4#include <linux/etherdevice.h>
  5#include <linux/firmware.h>
  6#include "mt7925.h"
  7#include "mac.h"
  8#include "mcu.h"
  9
 10static void
 11mt7925_regd_notifier(struct wiphy *wiphy,
 12		     struct regulatory_request *req)
 13{
 14	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 15	struct mt792x_dev *dev = mt792x_hw_dev(hw);
 16	struct mt76_dev *mdev = &dev->mt76;
 17
 18	/* allow world regdom at the first boot only */
 19	if (!memcmp(req->alpha2, "00", 2) &&
 20	    mdev->alpha2[0] && mdev->alpha2[1])
 21		return;
 22
 23	/* do not need to update the same country twice */
 24	if (!memcmp(req->alpha2, mdev->alpha2, 2) &&
 25	    dev->country_ie_env == req->country_ie_env)
 26		return;
 27
 28	memcpy(mdev->alpha2, req->alpha2, 2);
 29	mdev->region = req->dfs_region;
 30	dev->country_ie_env = req->country_ie_env;
 31
 32	mt792x_mutex_acquire(dev);
 33	mt7925_mcu_set_clc(dev, req->alpha2, req->country_ie_env);
 34	mt7925_mcu_set_channel_domain(hw->priv);
 35	mt7925_set_tx_sar_pwr(hw, NULL);
 36	mt792x_mutex_release(dev);
 37}
 38
 39static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev)
 40{
 41	int i;
 42
 43	for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) {
 44		u16 rate = mt76_rates[i].hw_value;
 45		u16 idx = MT792x_BASIC_RATES_TBL + i;
 46
 47		rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) |
 48		       FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0));
 49		mt7925_mac_set_fixed_rate_table(dev, idx, rate);
 50	}
 51}
 52
 53int mt7925_mac_init(struct mt792x_dev *dev)
 54{
 55	int i;
 56
 57	mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
 58	/* enable hardware de-agg */
 59	mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
 60
 61	for (i = 0; i < MT792x_WTBL_SIZE; i++)
 62		mt7925_mac_wtbl_update(dev, i,
 63				       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 64	for (i = 0; i < 2; i++)
 65		mt792x_mac_init_band(dev, i);
 66
 67	mt7925_mac_init_basic_rates(dev);
 68
 69	memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2));
 70
 71	return 0;
 72}
 73EXPORT_SYMBOL_GPL(mt7925_mac_init);
 74
 75static int __mt7925_init_hardware(struct mt792x_dev *dev)
 76{
 77	int ret;
 78
 79	ret = mt792x_mcu_init(dev);
 80	if (ret)
 81		goto out;
 82
 83	mt76_eeprom_override(&dev->mphy);
 84
 85	ret = mt7925_mcu_set_eeprom(dev);
 86	if (ret)
 87		goto out;
 88
 89	ret = mt7925_mac_init(dev);
 90	if (ret)
 91		goto out;
 92
 93out:
 94	return ret;
 95}
 96
 97static int mt7925_init_hardware(struct mt792x_dev *dev)
 98{
 99	int ret, i;
100
101	set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
102
103	for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
104		ret = __mt7925_init_hardware(dev);
105		if (!ret)
106			break;
107
108		mt792x_init_reset(dev);
109	}
110
111	if (i == MT792x_MCU_INIT_RETRY_COUNT) {
112		dev_err(dev->mt76.dev, "hardware init failed\n");
113		return ret;
114	}
115
116	return 0;
117}
118
119static void mt7925_init_work(struct work_struct *work)
120{
121	struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
122					      init_work);
123	int ret;
124
125	ret = mt7925_init_hardware(dev);
126	if (ret)
127		return;
128
129	mt76_set_stream_caps(&dev->mphy, true);
130	mt7925_set_stream_he_eht_caps(&dev->phy);
131
132	ret = mt76_register_device(&dev->mt76, true, mt76_rates,
133				   ARRAY_SIZE(mt76_rates));
134	if (ret) {
135		dev_err(dev->mt76.dev, "register device failed\n");
136		return;
137	}
138
139	ret = mt7925_init_debugfs(dev);
140	if (ret) {
141		dev_err(dev->mt76.dev, "register debugfs failed\n");
142		return;
143	}
144
145	/* we support chip reset now */
146	dev->hw_init_done = true;
147
148	mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable);
149}
150
151int mt7925_register_device(struct mt792x_dev *dev)
152{
153	struct ieee80211_hw *hw = mt76_hw(dev);
154	int ret;
155
156	dev->phy.dev = dev;
157	dev->phy.mt76 = &dev->mt76.phy;
158	dev->mt76.phy.priv = &dev->phy;
159	dev->mt76.tx_worker.fn = mt792x_tx_worker;
160
161	INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
162	INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
163	spin_lock_init(&dev->pm.wake.lock);
164	mutex_init(&dev->pm.mutex);
165	init_waitqueue_head(&dev->pm.wait);
166	spin_lock_init(&dev->pm.txq_lock);
167	INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
168	INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work);
169	INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work);
170#if IS_ENABLED(CONFIG_IPV6)
171	INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work);
172	skb_queue_head_init(&dev->ipv6_ns_list);
173#endif
174	skb_queue_head_init(&dev->phy.scan_event_list);
175	skb_queue_head_init(&dev->coredump.msg_list);
176
177	INIT_WORK(&dev->reset_work, mt7925_mac_reset_work);
178	INIT_WORK(&dev->init_work, mt7925_init_work);
179
180	INIT_WORK(&dev->phy.roc_work, mt7925_roc_work);
181	timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
182	init_waitqueue_head(&dev->phy.roc_wait);
183
184	dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
185	dev->pm.stats.last_wake_event = jiffies;
186	dev->pm.stats.last_doze_event = jiffies;
187	if (!mt76_is_usb(&dev->mt76)) {
188		dev->pm.enable_user = true;
189		dev->pm.enable = true;
190		dev->pm.ds_enable_user = true;
191		dev->pm.ds_enable = true;
192	}
193
194	if (!mt76_is_mmio(&dev->mt76))
195		hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
196
197	mt792x_init_acpi_sar(dev);
198
199	ret = mt792x_init_wcid(dev);
200	if (ret)
201		return ret;
202
203	ret = mt792x_init_wiphy(hw);
204	if (ret)
205		return ret;
206
207	hw->wiphy->reg_notifier = mt7925_regd_notifier;
208	dev->mphy.sband_2g.sband.ht_cap.cap |=
209			IEEE80211_HT_CAP_LDPC_CODING |
210			IEEE80211_HT_CAP_MAX_AMSDU;
211	dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
212			IEEE80211_HT_MPDU_DENSITY_2;
213	dev->mphy.sband_5g.sband.ht_cap.cap |=
214			IEEE80211_HT_CAP_LDPC_CODING |
215			IEEE80211_HT_CAP_MAX_AMSDU;
216	dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
217			IEEE80211_HT_MPDU_DENSITY_1;
218	dev->mphy.sband_5g.sband.vht_cap.cap |=
219			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
220			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
221			IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
222			IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
223			(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
224	dev->mphy.sband_5g.sband.vht_cap.cap |=
225			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
226			IEEE80211_VHT_CAP_SHORT_GI_160;
227
228	dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
229	dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
230
231	queue_work(system_wq, &dev->init_work);
232
233	return 0;
234}
235EXPORT_SYMBOL_GPL(mt7925_register_device);