2 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 #include "../mt76x02_phy.h"
22 mt76x2u_phy_channel_calibrate(struct mt76x02_dev *dev, bool mac_stopped)
24 struct ieee80211_channel *chan = dev->mt76.chandef.chan;
25 bool is_5ghz = chan->band == NL80211_BAND_5GHZ;
27 if (dev->cal.channel_cal_done)
30 if (mt76x2_channel_silent(dev))
34 mt76x2u_mac_stop(dev);
37 mt76x02_mcu_calibrate(dev, MCU_CAL_LC, 0);
39 mt76x02_mcu_calibrate(dev, MCU_CAL_TX_LOFT, is_5ghz);
40 mt76x02_mcu_calibrate(dev, MCU_CAL_TXIQ, is_5ghz);
41 mt76x02_mcu_calibrate(dev, MCU_CAL_RXIQC_FI, is_5ghz);
42 mt76x02_mcu_calibrate(dev, MCU_CAL_TEMP_SENSOR, 0);
43 mt76x02_mcu_calibrate(dev, MCU_CAL_TX_SHAPING, 0);
46 mt76x2_mac_resume(dev);
47 mt76x2_apply_gain_adj(dev);
48 mt76x02_edcca_init(dev);
50 dev->cal.channel_cal_done = true;
53 void mt76x2u_phy_calibrate(struct work_struct *work)
55 struct mt76x02_dev *dev;
57 dev = container_of(work, struct mt76x02_dev, cal_work.work);
59 mutex_lock(&dev->mt76.mutex);
61 mt76x2u_phy_channel_calibrate(dev, false);
62 mt76x2_phy_tssi_compensate(dev);
63 mt76x2_phy_update_channel_gain(dev);
65 mutex_unlock(&dev->mt76.mutex);
67 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work,
68 MT_CALIBRATE_INTERVAL);
71 int mt76x2u_phy_set_channel(struct mt76x02_dev *dev,
72 struct cfg80211_chan_def *chandef)
74 u32 ext_cca_chan[4] = {
75 [0] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 0) |
76 FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 1) |
77 FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 2) |
78 FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 3) |
79 FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(0)),
80 [1] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 1) |
81 FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 0) |
82 FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 2) |
83 FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 3) |
84 FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(1)),
85 [2] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 2) |
86 FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 3) |
87 FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 1) |
88 FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 0) |
89 FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(2)),
90 [3] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 3) |
91 FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 2) |
92 FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 1) |
93 FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 0) |
94 FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(3)),
96 bool scan = test_bit(MT76_SCANNING, &dev->mt76.state);
97 struct ieee80211_channel *chan = chandef->chan;
98 u8 channel = chan->hw_value, bw, bw_index;
99 int ch_group_index, freq, freq1, ret;
101 dev->cal.channel_cal_done = false;
102 freq = chandef->chan->center_freq;
103 freq1 = chandef->center_freq1;
105 switch (chandef->width) {
106 case NL80211_CHAN_WIDTH_40:
115 channel += 2 - ch_group_index * 4;
117 case NL80211_CHAN_WIDTH_80:
118 ch_group_index = (freq - freq1 + 30) / 20;
119 if (WARN_ON(ch_group_index < 0 || ch_group_index > 3))
122 bw_index = ch_group_index;
123 channel += 6 - ch_group_index * 4;
132 mt76x2_read_rx_gain(dev);
133 mt76x2_phy_set_txpower_regs(dev, chan->band);
134 mt76x2_configure_tx_delay(dev, chan->band, bw);
135 mt76x2_phy_set_txpower(dev);
137 mt76x02_phy_set_band(dev, chan->band, ch_group_index & 1);
138 mt76x02_phy_set_bw(dev, chandef->width, ch_group_index);
140 mt76_rmw(dev, MT_EXT_CCA_CFG,
141 (MT_EXT_CCA_CFG_CCA0 |
142 MT_EXT_CCA_CFG_CCA1 |
143 MT_EXT_CCA_CFG_CCA2 |
144 MT_EXT_CCA_CFG_CCA3 |
145 MT_EXT_CCA_CFG_CCA_MASK),
146 ext_cca_chan[ch_group_index]);
148 ret = mt76x2_mcu_set_channel(dev, channel, bw, bw_index, scan);
152 mt76x2_mcu_init_gain(dev, channel, dev->cal.rx.mcu_gain, true);
155 if (mt76xx_rev(dev) >= MT76XX_REV_E3)
156 mt76_set(dev, MT_BBP(RXO, 13), BIT(10));
158 if (!dev->cal.init_cal_done) {
159 u8 val = mt76x02_eeprom_get(dev, MT_EE_BT_RCAL_RESULT);
162 mt76x02_mcu_calibrate(dev, MCU_CAL_R, 0);
165 mt76x02_mcu_calibrate(dev, MCU_CAL_RXDCOC, channel);
167 /* Rx LPF calibration */
168 if (!dev->cal.init_cal_done)
169 mt76x02_mcu_calibrate(dev, MCU_CAL_RC, 0);
170 dev->cal.init_cal_done = true;
172 mt76_wr(dev, MT_BBP(AGC, 61), 0xff64a4e2);
173 mt76_wr(dev, MT_BBP(AGC, 7), 0x08081010);
174 mt76_wr(dev, MT_BBP(AGC, 11), 0x00000404);
175 mt76_wr(dev, MT_BBP(AGC, 2), 0x00007070);
176 mt76_wr(dev, MT_TXOP_CTRL_CFG, 0X04101b3f);
178 mt76_set(dev, MT_BBP(TXO, 4), BIT(25));
179 mt76_set(dev, MT_BBP(RXO, 13), BIT(8));
184 mt76x2u_phy_channel_calibrate(dev, true);
185 mt76x02_init_agc_gain(dev);
187 if (mt76x2_tssi_enabled(dev)) {
188 /* init default values for temp compensation */
189 mt76_rmw_field(dev, MT_TX_ALC_CFG_1, MT_TX_ALC_CFG_1_TEMP_COMP,
191 mt76_rmw_field(dev, MT_TX_ALC_CFG_2, MT_TX_ALC_CFG_2_TEMP_COMP,
194 /* init tssi calibration */
195 if (!mt76x2_channel_silent(dev)) {
196 struct ieee80211_channel *chan;
199 chan = dev->mt76.chandef.chan;
200 if (chan->band == NL80211_BAND_5GHZ)
202 if (mt76x02_ext_pa_enabled(dev, chan->band))
204 mt76x02_mcu_calibrate(dev, MCU_CAL_TSSI, flag);
205 dev->cal.tssi_cal_done = true;
209 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work,
210 MT_CALIBRATE_INTERVAL);